This is the 10th supplement since publication of the seventh edition of the Check-list of North American Birds (American Ornithologists' Union [AOU] 1998). It summarizes decisions made between 1 January 2009 and 31 March 2010 by the AOU's Committee on Classification and Nomenclature—North and Middle America. The Committee has continued to operate in the manner outlined in the 42nd Supplement (AOU 2000). There were no changes to committee membership in 2009.

Changes in this supplement include the following: (1) one genus (Chrysomus) and eight species (Oceanodroma monorhis, Ixobrychus minutus, Ardea purpurea, Platalea leucorodia, Glareola pratincola, Elaenia albiceps, Luscinia sibilans, and Chrysomus icterocephalus) are added to the main list (including three species transferred from the Appendix) on the basis of new distributional information; (2) the distributional statement of one species (Trogon melanurus) is changed because of a split from an extralimital species; (3) three species are changed (to Melanitta americana, Trogon caligatus, and T. chionurus) by being split from extralimital species; (4) six species (Caprimulgus arizonae, Chasiempis sclateri, C. ibidis, Icterus northropi, I. melanopsis, and I. portoricensis) are added as a result of splits from species already on the list; (5) two species (Troglodytes hiemalis and T. pacificus) are added by being split both from an extralimital taxon (T. troglodytes) and from each other; (6) five species (Melozone fusca, M. albicollis, M. crissalis, M. aberti, and Amphispiza quinquestriata) are transferred to currently recognized genera; (7) five genera (Psilorhinus, Peucaea, Oreothlypis, Parkesia, and Rhynchophanes) are added because of splits from other genera, resulting in changes to 20 scientific names; (8) a new scientific name (Vermivora cyanoptera) is adopted for one species because of a nomenclatural problem with the previous scientific name (V. pinus); (9) the citation for one species (Dendroica pinus) is changed; (10) the endings of the specific or subspecific names of two taxa (Acanthidops bairdi and Vireo gilvus swainsoni) are corrected; (11) the English names of three species (Caprimulgus vociferus, Chasiempis sandwichensis, and Icterus dominicensis) are modified as a result of taxonomic changes, the English name of one species (Puffinus gravis) is modified for global conformity, and the hyphen is removed from the English name of one species (Empidonomus aurantioatrocristatus); and (12) two species (Empidonomus aurantioatrocristatus and Thryothorus sinaloa) are added to the list of species known to occur in the United States.

Numerous changes are made at higher levels of the classification on the basis of new genetic data. Four newly recognized orders (Phaethontiformes, Suliformes, Accipitriformes, and Eurypygiformes) are added to the main list by being split from existing orders, and 11 newly recognized or restored families (Pandionidae, Capitonidae, Semnornithidae, Polioptilidae, Cettiidae, Phylloscopidae, Acrocephalidae, Donacobiidae, Megaluridae, Calcariidae, and Viduidae) are added to the main list by splits from existing families. Two families (Ardeidae and Threskiornithidae) are transferred from the order Ciconiiformes to the order Pelecaniformes. New linear sequences are adopted for species in the genera Cyanolyca, Aimophila, and Pipilo, and the sequences of genera within the Cotingidae and portions of the Corvidae and Emberizidae are rearranged to reflect new findings on relationships. One genus (Lipaugus) is moved from Incertae Sedis to the Cotingidae. The family placement of one species (Chamaea fasciata) is changed on the basis of new information on its phylogenetic relationships. The English group names of three orders (Pelecaniformes, Ciconiiformes, and Falconiformes), one suborder (Pelecani), and three families (Ramphastidae, Sylviidae, and Cardinalidae) are modified because of changes to the composition of these groups.

Literature that provides the basis for the Committee's decisions is cited at the end of this supplement, and citations not already in the Literature Cited of the seventh edition (with supplements) become additions to it. An updated list of the bird species known from the AOU Check-list area is available at  www.aou.org/checklist/north/index.php.

The following changes to the seventh edition (page numbers refer thereto) and its supplements result from the Committee's actions:

pp. xvii–liv. Change the number in the title of the list of species to 2,070. Insert the following names in the proper positions as indicated by the text of this supplement:

Delete the following names:

Recognize new orders PHAETHONTIFORMES, SULIFORMES, and ACCIPITRIFORMES, elevate Pandioninae to PANDIONIDAE, and move several families between orders, rearranging and reconstituting the orders between PROCELLARIIFORMES and GRUIFORMES as follows, with PHAETHONTIFORMES immediately following Oceanodroma microsoma:

Other than the elevation of Pandioninae and the transfer of Pandion haliaetus from ACCIPITRIDAE to PANDIONIDAE, all subfamilies and species in these families remain in the current sequence within their current family.

Move EURYPYGIDAE and its included species to the newly inserted EURYPYGIFORMES, to follow Falco mexicanus.

Move Lipaugus unirufus to COTINGIDAE to precede Procnias tricarunculatus.

Change the sequence of genera of COTINGIDAE to:

Change the sequence of genera from Cyanocitta to Gymnorhinus to:

Rearrange the species in Cyanolyca to the following sequence:

Move newly inserted family POLIOPTILIDAE and its included species to follow Cyphorhinus phaeocephalus.

Change the sequence of families from SYLVIIDAE to ZOSTEROPIDAE, including newly inserted families CETTIIDAE, PHYLLOSCOPIDAE, ACROCEPHALIDAE, DONACOBIIDAE, and MEGALURIDAE, to:

Move Cettia diphone to follow the newly inserted CETTIIDAE.

Move the six species of Phylloscopus to follow the newly inserted PHYLLOSCOPIDAE.

Move Chamaea fasciata to SYLVIIDAE, following Sylvia curruca.

Move the two species of Acrocephalus to follow the newly inserted ACROCEPHALIDAE.

Move Donacobius atricapilla to follow the newly inserted DONACOBIIDAE, and delete the asterisk in front of the name.

Move the two species of Locustella to follow the newly inserted MEGALURIDAE.

Rearrange the species remaining in Pipilo to the following sequence:

Rearrange the species remaining in Aimophila to the following sequence:

Change the sequence of genera from Atlapetes to Aimophila to:

Move Amphispiza quinquestriata to precede Amphispiza bilineata.

Move the three species of Calcarius, Rhynchophanes mccownii, and the two species of Plectrophenax to follow the newly inserted CALCARIIDAE. Remove the asterisks in front of the three species of Calcarius, Rhynchophanes mccownii, and the two species of Plectrophenax.

p. 18. Change the English name for Puffinus gravis to Great Shearwater (as in Marchant and Higgins 1990a, Sibley and Monroe 1990, Carboneras 1992, Dudley et al. 2006). Change Notes to read: Formerly known as Greater Shearwater (e.g., AOU 1983, 1998), but name modified to conform to general worldwide usage.

p. 24. Before the account for Oceanodroma leucorhoa, insert the following new account:

In the Notes for O. leucorhoa, change the first sentence to: Oceanodroma leucorhoa and O. monorhis probably constitute a superspecies (Sibley and Monroe 1990), although Mayr and Short (1970) considered O. leucorhoa and O. castro to constitute a superspecies. Replace the last sentence in these Notes with the following: See comments under O. monorhis.

p. 26. After the account for Oceanodroma microsoma, insert the heading:

p. 38. After the account for Ixobrychus exilis, insert the following new account:

p. 40. After the account for Ardea cocoi, insert the following new account:

p. 50. Before the account for Platalea ajaja, known as Ajaia ajaja until the 43rd Supplement (Banks et al. 2002), insert the following new account:

p. 50. Phylogenetic analyses of mitochondrial and nuclear gene sequences have shown that the traditional order Ciconiiformes is not a monophyletic group (Van Tuinen et al. 2001, Ericson et al. 2006, Hackett et al. 2008). Following removal of families more closely related to the Pelecanidae than to the Ciconiidae (see above), the Ciconiiformes consists of the single family Ciconiidae.

Change the heading Order CICONIIFORMES: Herons, Ibises, Storks, and Allies to Order CICONIIFORMES: Storks. Change the Notes under the new heading to: See comments under Order PELECANIFORMES. Delete the heading Suborder CICONIAE: Storks.

p. 51. After the account for Mycteria americana, and preceding the newly positioned Pelecaniformes (see above), insert the heading:

p. 81. Melanitta americana is treated as a separate species from the allopatric Melanitta nigra. Change the scientific name, English name, and citation to:

p. 86. Before the heading FALCONIFORMES, insert the heading:

Delete the heading Subfamily ACCIPITRINAE: Kites, Eagles, and Hawks from p. 87, and delete the heading Suborder FALCONES: Caracaras and Falcons from p. 105.

pp. 86–87. Change the heading Subfamily PANDIONINAE: Ospreys to Family: PANDIONIDAE: Ospreys. After the new heading, insert the following:

Notes.—Previously considered a subfamily of the Accipitridae (AOU 1998), the Osprey is returned to family status because of its genetic and morphological distinctiveness (Helbig et al. 2005, Lerner and Mindell 2005, Ericson et al. 2006, Griffiths et al. 2007, Hackett et al. 2008).

Move the new family and its included genus and species accounts from pp. 86–87 to a position following the account for Sarcoramphuspapa.

pp. 111–112. After the account for Falco mexicanus, insert the heading:

p. 181. Before the account for Glareola maldivarum, insert the following new account:

p. 272. Caprimulgus arizonae is separated from C. vociferus. Revise the account for C. vociferus as follows: Change English name to Eastern Whip-poor-will. Change Habitat to: Mainly deciduous and mixed forest with open understory; in migration and winter in mixed and evergreen forests and woodland (Tropical to Temperate zones). Distribution is as for vociferus group, except: in winter distribution change “from northern Mexico (Sonora eastward)” to “from northeastern Mexico,” deleting mention of Sonora, and add “and in Arizona” to the end of the sentence on accidental occurrence. Change Notes to: Formerly included C. arizonae under the English name Whip-poor-will, but now separated on the basis of differences in vocalizations (Hardy et al. 1988, Cink 2002) and mitochondrial and nuclear DNA (Han et al. 2010); the two species also differ in morphology (Phillips et al. 1964, Cink 2002) and egg pigmentation (Phillips et al. 1964).

Following the account for C. vociferus, insert the following:

p. 315. Trogon chionurus is recognized as distinct from T. viridis, following the AOU South American Classification Committee (Remsen et al. 2010). Replace the account for T. viridis with the following:

pp. 315–316. Trogon caligatus is recognized as distinct from T. violaceus, following the AOU South American Classification Committee (Remsen et al. 2010). Replace the account for T. violaceus with the following:

p. 317. The extralimital species Trogon mesurus is recognized as distinct from T. melanurus, following the AOU South American Classification Committee (Remsen et al. 2010). In the account for T. melanurus, remove “and west of the Andes in western Ecuador and northwestern Peru” from the Distribution of the melanurus group, and add the following sentence to the end of the Notes: Formerly included T. mesurus Cabanis and Heine, 1863 [Ecuadorian Trogon] of western Ecuador and northwestern Peru but separated on the basis of differences in vocalizations (Ridgely and Greenfield 2001) and mitochondrial DNA, which suggests that T. mesurus and T. melanurus are not sister species (DaCosta and Klicka 2008).

p. 328. Change the heading Family RAMPHASTIDAE: New World Barbets and Toucans to Family RAMPHASTIDAE: Toucans, and move the new heading to p. 329 to replace the heading Subfamily RAMPHASTINAE: Toucans. Change the Notes under this heading to read: See comments under Semnornithidae. Change the heading Subfamily CAPITONINAE: New World Barbets to Family CAPITONIDAE: New World Barbets, and change the heading Subfamily SEMNORNITHINAE: Toucan-Barbets to Family SEMNORNITHIDAE: Toucan-Barbets. Under the heading Family SEMNORNITHIDAE: Toucan-Barbets, insert the following:

Notes.—Genetic data (Barker and Lanyon 2000, Moyle 2004) indicate that Semnornis cannot be placed reliably in either the Capitonidae or Ramphastidae, is roughly as old as either group, and may even be the sister to both.

Under the heading Family CAPITONIDAE: Toucan-Barbets, insert the following:

Notes.—See comments under Semnornithidae.

p. 377. After the account for Elaenia flavogaster, insert the following new account:

p. 411. A record of the Crowned Slaty Flycatcher, Empidonomus aurantioatrocristatus, in the United States is recognized, and the hyphen is removed from the name, following Remsen et al. (2010). This species was added to the list in the 50th supplement (Chesser et al. 2009). After the paragraph detailing the Panama record add the following new paragraph: Accidental in southwestern Louisiana (Peveto Beach Woods, near Johnsons Bayou, Cameron Parish, 3 June 2008; Conover and Myers 2009).

pp. 420–423. Phylogenetic analysis of mitochondrial and nuclear DNA sequences (Ohlson et al. 2007) has shown that relationships among North American genera of the family Cotingidae are not properly reflected in the linear sequences of previous classifications, and that the genus Lipaugus, previously considered incertae sedis, is a member of the Cotingidae. Their phylogenetic conclusions result in a new sequence of genera, as follows:

Under the heading Family COTINGIDAE: Cotingas, insert the following:

Notes.—Sequence of genera follows Ohlson et al. (2007).

p. 436. Throughout the account for Vireo gilvus, change the spelling of swainsonii to swainsoni. This follows the finding of David et al. (2009) that the latter is the correct spelling under Article 24.2.4 of the Code (International Commission on Zoological Nomenclature 1999).

pp. 443–444. The genus Psilorhinus, now in the synonymy of Cyanocorax, is restored for the species morio. Remove the citation for Psilorhinus from Cyanocorax and insert the following after the account for Calocitta formosa:

pp. 442–448. Phylogenetic analysis of mitochondrial and nuclear DNA sequences (Bonaccorso and Peterson 2007) has shown that relationships among New World genera of jays (family Corvidae) are not properly reflected in the linear sequences of previous classifications. Their phylogenetic conclusions result in a new sequence of genera, as follows:

Under the heading Family CORVIDAE: Crows and Jays on p. 441, insert the following:

Notes.—Sequence of New World genera of jays follows Bonaccorso and Peterson (2007).

pp. 445–446. Phylogenetic analysis of mitochondrial and nuclear DNA sequences (Bonaccorso 2009) has shown that relationships among members of the genus Cyanolyca are not properly reflected in the linear sequences of previous classifications. Her conclusions result in a new sequence of species, as follows:

Under the heading Genus CYANOLYCA Cabanis, insert the following:

Notes.—Sequence of species derived from phylogenetic data in Bonaccorso (2009).

pp. 452–453. Chasiempis sclateri and C. ibidis are separated from C. sandwichensis. Insert new accounts for C. sclateri and C. ibidis and revise the account for C. sandwichensis as follows:

p. 477. Records of the Sinaloa Wren, Thryothorus sinaloa, in the United States are recognized. After the last sentence in the Distribution account, add the following new paragraph: Casual in southeastern Arizona (near Patagonia, Santa Cruz County, 25 August 2008 through August 2009, Brown and Baxter 2009, photo; near Fort Huachuca, Cochise County, 14–18 April 2009 [North American Birds 63:479, photo]).

p. 482. Troglodytes pacificus and T. hiemalis are separated from T. troglodytes. Delete the account for T. troglodytes and replace it with new accounts for T. pacificus and T. hiemalis as follows:

p. 489. The Sylviidae as currently classified is not a monophyletic group (Cibois 2003, Barker 2004, Barker et al. 2004, Alström et al. 2006, Johansson et al. 2008, Fregin et al. 2009, Gelang et al. 2009). Below we follow Alström et al. (2006) in recognizing several new families primarily composed of species formerly considered sylviid. These actions result in the addition of five families (Cettiidae, Phylloscopidae, Acrocephalidae, Donacobiidae, Megaluridae) to the check-list, the elevation of one subfamily to family (Polioptilidae), and changes to the composition of two existing families (Sylviidae, Timaliidae):

After the account for Regulus calendula on p. 488, insert the heading:

After the account for Cettia diphone, insert the heading:

Move Genus SYLVIA Scopoli, its citation, and its included species from p. 491 to follow this newly modified family. Move Genus CHAMAEA Gambel, its citation, and its included species from p. 514 to a position following the account for Sylvia curruca. Change Notes for Genus CHAMAEA Gambel to the following: Formerly placed in the monotypic family Chamaeidae (AOU 1957) and in the Timaliidae (AOU 1998); see Alström et al. (2006) for placement in the Sylviidae.

Move the heading Family ZOSTEROPIDAE: White-eyes and the genus and species included under this heading from p. 515 to a position following the account for Chamaea fasciata.

Move the heading Family TIMALIIDAE: Babblers and the genera and species included under this heading (except for Chamaea) from pp. 513–514 to a position following the account for Zosterops japonicus. Delete Notes under this family heading.

After the account for Leiothrix lutea, insert the heading:

Move Genus ACROCEPHALUS Naumann and Naumann, its citation, and its included species from p. 490 to follow this newly inserted family.

After the account for Acrocephalus schoenobaenus, insert the heading:

After the account for Donacobius atricapilla, insert the heading:

Move Genus LOCUSTELLA Kaup, its citation, and its included species from p. 489 to follow this newly inserted family.

Change the heading Subfamily POLIOPTILINAE: Gnatcatchers and Gnatwrens to Family POLIOPTILIDAE: Gnatcatchers and Gnatwrens, and delete Notes under the subfamily heading. Insert the following under the new heading:

Notes.—See comments under Family Sylviidae.

Move this newly inserted family and its included genera and species from pp. 491–494 to a position following the account for Cyphorhinus phaeocephalus.

p. 495. Before the account for Luscinia calliope, insert the following new account:

pp. 532–534, 547. The name Vermivora pinus is changed to V. cyanoptera, following Olson and Reveal (2009). The following actions result from this information:

Modify the citation for Genus VERMIVORA Swainson on p. 532 to:

Vermivora Swainson, 1827, Philos. Mag. (n.s.) 1:434. Type, by monotypy, Sylvia solitaria Wilson = Vermivora cyanoptera Olson and Reveal.

pp. 533–534. Change Vermivora pinus (Linnaeus) to Vermivora cyanoptera Olson and Reveal, and change the citation for the species to:

Vermivora cyanoptera Olson and Reveal, 2009. Wilson Journ. Ornithol. 121:620. (eastern Pennsylvania.)

Insert the following at the end of the Notes for this account: Formerly Vermivora pinus (Linnaeus), but see Olson and Reveal (2009), who showed that the 1766 Linnaean name Certhia pinus is a composite name based on illustrations of birds of two species, the Pine Warbler, now known as Dendroica pinus, and the Blue-winged Warbler, until now Vermivora pinus. They concluded that the name Certhia pinus applies to the Pine Warbler, and that the name Vermivora pinus (Linnaeus) is not available for the Blue-winged Warbler, nor is Sylvia solitaria (Wilson) or any other name. They proposed the new name Vermivora cyanoptera for this species.

p. 547. Change Dendroica pinus (Wilson) to Dendroica pinus (Linnaeus) and change the citation for this species to:

Certhia Pinus Linnaeus, 1766, Syst. Nat. (ed. 12) 1:187. Based largely on “The Pine Creeper” of Catesby, Nat. Hist. Carolina, Florida, and the Bahama Islands, vol. 1, part 4, pl. and text 61. (in America septentrionali = South Carolina; see Olson and Reveal 2009.)

pp. 534–538. The genus Oreothlypis, now in the synonymy of Parula, is restored for the species gutturalis and superciliosa and newly used for the following species formerly placed in Vermivora: peregrina, celata, ruficapilla, virginiae, crissalis, and luciae. Remove the citation for Oreothlypis from Parula and insert the following after the account for Vermivora chrysoptera under the heading:

Change the generic names of Vermivora peregrina, Vermivora celata, Vermivora ruficapilla, Vermivora virginiae, Vermivora crissalis, Vermivora luciae, Parula gutturalis, and Parula superciliosa to Oreothlypis and place those accounts in this sequence under the heading and Notes for Oreothlypis. For O. peregrina, O. celata, and O. luciae, add the following:

Notes.—Formerly (AOU 1983, 1998) placed in the genus Vermivora; see comments under Oreothlypis.

In the Notes for O. reficapilla, O. virginiae, and O. crissalis, make the appropriate changes in the generic abbreviations and add the following sentence at the end: Formerly (AOU 1983, 1998) placed in the genus Vermivora; see comments under Oreothlypis.

Change the Notes for O. gutturalis to: Formerly (AOU 1983, 1998) placed in the genus Parula; see comments under Oreothlypis. Change the Notes for O. superciliosa to: Formerly (AOU 1983, 1998) placed in the genus Parula; see comments under Oreothlypis. Also known as Hartlaub's Warbler or Spot-breasted Warbler.

pp. 555–556. Two species formerly placed in Seiurus, noveboracensis and motacilla, are transferred to the new genus Parkesia.

After the account for Seiurus aurocapilla, insert the following heading and Notes:

Change Seiurus noveboracensis to Parkesia noveboracensis and Seiurus motacilla to Parkesia motacilla and place those accounts in this sequence under the heading and Notes for Parkesia. Add the following to the accounts for both species:

Notes.—Formerly (AOU 1983, 1998) placed in the genus Seiurus.

p. 597. Change the spelling Acanthidops bairdii to Acanthidops bairdi, in the citation for the genus, the heading for the species, and the citation for the species. Add the following to the end of the species account:

Notes.—The original spelling of the species name was bairdi (Ridgway 1882). The spelling bairdii (Paynter 1970) was an incorrect subsequent spelling (International Commission on Zoological Nomenclature 1999, Article 33.4) followed by most subsequent authors.

p. 603. Recent mitochondrial genetic data (DaCosta et al. 2009) have shown that relationships among a portion of the North American genera of the family Emberizidae are not properly reflected in the linear sequences of previous classifications. Remove the genera Atlapetes, Pipilo, Aimophila, and Melozone, their citations, and the following species accounts from their current placement on pp. 601, 603–606, and 608–609, and insert them in the following sequence after the account for Arremonops conirostris:

Under the heading for the genus Atlapetes, insert the following:

Notes.—The sequence of species from Atlapetes through Melozone is derived from the phylogenetic analysis of DaCosta et al.(2009).

Add the following sentence to the Notes under the genus Pipilo: See comments under Atlapetes and Melozone.

p. 606. Transfer four species of Pipilo (fuscus, albicollis, crissalis, and aberti) to the genus Melozone and insert them in the following sequence after the account for Melozone kieneri:

Under the heading for the genus Melozone, add the following:

Notes.—Mitochondrial genetic data (DaCosta et al. 2009) have shown that the genus Pipilo comprised two unrelated groups, one consisting of ocai, chlorurus, maculatus, and erythrophthalmus, the other of the “brown towhee” group:fuscus, albicollis, crissalis, and aberti. The same study revealed that Melozone kieneri forms a monophyletic group with the brown towhees, and that M. leucotis and M. biarcuata are closely related to this group. Although DaCosta et al. (2009) suggested that kieneri, fuscus, albicollis, crissalis, and aberti be transferred to the genus Pyrgisoma, thereby splitting Melozone kieneri from its congeners, we have taken a more conservative approach, consistent with phenotypic similarities between M. kieneri and M. biarcuata (e.g, they were treated as conspecific by Hellmayr [1938]), and merged the brown towhees into Melozone. Insert the following sentence at the beginning of the Notes for M. albicollis, M. crissalis, and M. fusca: Formerly (AOU 1983, 1998) placed in the genus Pipilo. Insert the following at the end of the account for M. aberti:

Notes.—Formerly (AOU 1983, 1998) placed in the genus Pipilo.

pp. 606. Recent mitochondrial genetic data (DaCosta et al. 2009) have shown that the North American species of the broadly defined genus Aimophila belong to four distinct lineages: (1) notosticta, ruficeps, and rufescens; (2) aestivalis, cassinii, botterii, humeralis, mystacalis, and ruficauda; (3) carpalis and sumichrasti; and (4) quinquestriata. This arrangement is generally consistent with previous work on morphology and vocalizations (e.g., Ridgway 1901, Storer 1955, Wolf 1977).

The type species of Aimophila is rufescens, so the name Aimophila stays with lineage 1 above. Some analyses of DaCosta et al. (2009) placed lineages 2 and 3 above as sisters, and the authors suggested that they remain congeneric pending further data. The genus name Peucaea has priority for this clade. Genetic data (DaCosta et al. 2009) indicate that Aimophila quinquestriata forms a clade with Amphispiza bilineata, and DaCosta et al. (2009) proposed that this species be returned to Amphispiza.

The genus Peucaea is resurrected for the species aestivalis, cassinii, botterii, humeralis, mystacalis, ruficauda, carpalis, and sumichrasti. Insert the following heading in a position following the account for Melozone aberti:

Transfer Aimophila aestivalis, cassinii, botterii, humeralis, mystacalis, ruficauda, carpalis, and sumichrasti (pp. 607–608) to the genus Peucaea, and insert them in the following sequence:

For each species, make the appropriate changes in generic abbreviations within the existing Notes and add the following sentence to the end of the Notes: Formerly (e.g., AOU 1983, 1998) placed in the genus Aimophila; see comments under Peucaea. Under the genus Aimophila replace the Notes with the following: See comments under Peucaea, Atlapetes, and Amphispiza quinquestriata.

Move Aimophila quinquestriata (p. 609) to the genus Amphispiza, and move the account for this species to a position preceding the account for Amphispiza bilineata. Replace the Notes with: Formerly merged with Aimophila (e.g., AOU 1998), but now separated on the basis of genetic (DaCosta et al. 2009) and morphological and vocal (e.g., Ridgway 1901, Storer 1955, Wolf 1977) data. Genetic data (DaCosta et al. 2009) indicate that this species forms a clade with Amphispiza bilineata.

pp. 626–627. Return Calcarius mccownii to the monotypic genus Rhynchophanes, delete the Notes under Calcarius and under the account for this species, remove the citation for Rhynchophanes from Calcarius, and insert the following heading and Notes prior to the account for R. mccownii:

pp. 626–628, 630. After the account for Peucedramus taeniatus on p. 532, insert the following heading and Notes:

Move Genus CALCARIUS Bechstein, Genus RHYNCHOPHANES Baird, and Genus PLECTROPHENAX Stejneger, and their included species, from pp. 626–628 and 630 to follow this newly inserted family, in the following sequence:

p. 631. Change Family CARDINALIDAE: Cardinals, Saltators, and Allies to Family CARDINALIDAE: Cardinals and Allies. A modified English group name is needed because of the removal of the saltators (genus Saltator) from this family (Chesser et al. 2009).

p. 642. After the account for Nesopsar nigerrimus, insert the following genus heading and species account:

In the Casual section for the account of Xanthocephalus xanthocephalus on p. 644, remove mention of Barbados. Insert the following at the end of this account:

Notes.—Formerly considered casual in Barbados (AOU 1998), but the identification of the voucher specimen has been confirmed as Chrysomus icterocephalus (Massiah and Frost 1997, Buckley et al.2009).

pp. 649–650. Icterus northropi, I. melanopsis, and I. portoricensis are treated as separate species from I. dominicensis. Revise the account of I. dominicensis and add new accounts for I. northropi, I. melanopsis, and I. portoricensis as follows:

p. 684. Replace the heading Subfamily VIDUINAE: Whydahs with Family VIDUIDAE: Whydahs, and insert the following under the heading:

Notes.—Formerly (AOU 1998) considered a subfamily of Estrildidae, but forms a distinct mtDNA clade and differs dramatically in behavioral and ecological traits, especially those related to breeding biology (Sorenson and Payne 2001). Family status follows their treatment in most recent worldwide lists (e.g., Dickinson 2003).

Remove the heading Subfamily ESTRILDINAE: Estrildine Finches from p. 680. Insert the following under the heading Family ESTRILDIDAE: Estrildid Finches on p. 680:

Notes.—See comments under Family Viduidae.

p. 688. Delete the account for Oceanodroma monorhis from the Appendix (AOU 2000).

p. 689. Delete the account for Platalea leucorodia from the Appendix.

p. 696. Delete the account for Luscinia sibilans from the Appendix (Banks et al. 2004).

pp. 705 ff. Make the following changes to the list of French names of North American birds:

Insert the following names in the proper position as indicated by the text of this supplement:

Delete the following names:

Delete the following species from the APPENDIX (Part 1):

Change the following scientific names, retaining the French names:

Change the sequence of families from PHAETHONTIDAE to CICONIIDAE (including in APPENDIX [Part 1]) to the following sequence, with no change in French names:

Move Pandion haliaetus to the newly inserted family PANDIONIDAE.

Move family EURYPYGIDAE and its included species, to follow Falco mexicanus.

Move Lipaugus unirufus to COTINGIDAE to precede Procnias tricarunculatus.

Change the sequence of genera of COTINGIDAE as indicated by the text of this supplement.

Change the sequence of genera from Cyanocitta to Gymnorhinus as indicated by the text of this supplement.

Change the sequence of species in Cyanolyca as indicated by the text of this supplement.

Move newly inserted family POLIOPTILIDAE and its included species to follow Cyphorhinus phaeocephalus.

Change the sequence of families from SYLVIIDAE to ZOSTEROPIDAE, including newly inserted families CETTIIDAE, PHYLLOSCOPIDAE, ACROCEPHALIDAE, DONACOBIIDAE, and MEGALURIDAE, to:

and insert the species in the proper position as indicated by the text of this supplement.

Change the sequence of species remaining in Pipilo as indicated by the text of this supplement.

Change the sequence of genera from Atlapetes to Aimophila as indicated by the text of this supplement.

Move Amphispiza quinquestriata to a position before Amphispiza bilineata.

Move the three species of Calcarius, Rhynchophanes mccownii, and the two species of Plectrophenax to follow the newly inserted CALCARIIDAE.

Proposals considered but not accepted by the committee included: recognition of multiple orders within the existing order Caprimulgiformes, division of Aphelocoma californica (Western Scrub-Jay) into three species, division of Toxostoma curvirostre (Curve-billed Thrasher) into two species, recognition of a new genus of warbler (Leiothlypis) for six species now included in Oreothlypis, and recognition of a new species of Red Crossbill, Loxia sinesciurus (South Hills Crossbill).