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1 December 2011 Nesting Record and Population Phenology of the Flammulated Flycatcher (Deltarhynchus flammulatus)
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We used mist netting in the Chamela-Cuixmala Biosphere Reserve to assess the population phenology of the Flammulated Flycatcher (Deltarhynchus flammulatus), a poorly-known dry forest endemic of the Mexican Pacific Slope. We captured 135 birds (first records only) during 23,515 net hrs over a period of several years which suggests this flycatcher is common at the reserve. Monthly averages of captures (including monthly recaptures) differed between seasons with a peak (71%) during May to August (end of dry season to middle of wet season) and fewer (29%) captures during the rest of the year. Flammulated Flycatchers in breeding condition (n  =  38) were captured in June and July. Hatching year birds (n  =  8) were captured from 10 July through 11 December. We found an active nest in a cavity on 29 June 2010. We observed pieces of snake skin lining the nest, which may indicate a closer relationship with Myiarchus. Additional knowledge on the ecology and breeding biology of the Flammulated Flycatcher is urgently needed for development of effective conservation plans.

Jorge H. Vega Rivera, Felipe Campos-Cerda, and Manfred Meiners "Nesting Record and Population Phenology of the Flammulated Flycatcher (Deltarhynchus flammulatus)," The Wilson Journal of Ornithology 123(4), 761-765, (1 December 2011).
Received: 25 January 2011; Accepted: 1 May 2011; Published: 1 December 2011

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