We present new records of two poorly known species in eastern Colombia. Yellow-crowned Elaenia Myiopagis flavivertex, previously known in Colombia from a single record in the Inírida region, was recorded in dptos. Meta and Guaviare. Dugand's Antwren Herpsilochmus dugandi was recorded in dpto. Guaviare, representing the species' northernmost limit in Amazonia. These records underscore the importance of further inventories of the poorly known eastern part of Colombia.

The dove known as Streptopelia risoria (Linnaeus, 1758) has long confused ornithologists. Linnaeus described a domestic variety of a dove whose wild form was then unknown. Its wild counterpart, African Collared Dove, was subsequently named Streptopelia roseogrisea (Sundevall, 1857) but that name's type series was mixed. Despite this, the name roseogrisea became commonly accepted and was used for both African Collared Dove and its domestic form in avian taxonomy, whilst the name risoria was commonly used by bird-keepers for the domestic form. In 2008 the ICZN ruled that the senior name risoria should have priority for both African Collared Dove and its domestic form, Barbary Dove. Although this decision was appropriate, it was based on incomplete information. Here a detailed history of the use of the name risoria in the ornithological literature is presented, followed by designation of a neotype for roseogrisea to resolve taxonomy.

‘Among the Turtle-Doves—now Streptopelia, formerly Turtur—there is first of all a difficulty about the name “risoria”' (Hartert 1916).

We report new records of Pinyon Jay Gymnorhinus cyanocephalus) in Chihuahua, northern Mexico. All were made at Rancho Canoas, in the municipality of Gómez Farías, Chihuahua, involving more than 50 individuals between October 2014 and October 2015. Despite being considered a casual visitor to the Alta Babícora Basin, the presence of G. cyanocephalus may reflect the abundant Pinus cembroides in this region, as the species primarily inhabits forests of pine and Juniperus. We discuss the species' current and historical status, based on the published literature, online databases, and unpublished sightings from experienced birdwatchers. We compared the environmental parameters of available records across the species' geographic range with those in Chihuahua, and found no climatic differences between them.

Collared Forest Falcon Micrastur semitorquatus ranges from northern Mexico to southern Brazil. This species is known to lay 1–3 eggs. We describe the first four-egg clutch for M. semitorquatus from observations made in southern Brazil, in the state of Santa Catarina. We also describe the nest site, nestling diet and assess sex ratio and mass gain of the nestlings.

The Meratus Mountains of south-east Borneo are biogeographically interesting due to their isolation and potential endemicity. However, Meratus' birds have never been quantitatively surveyed or collected, so we know little of their community structure or taxonomy. In May 2017, we visited Mt. Besar in the Meratus range to assess its avifauna and collect specimens for phylogeographic study. Here, we report on Mt. Besar's avifauna and provide preliminary ND2-sequence assessments of their relationships. We recorded 89 species, of which we collected 68 species; 17 represented distributional extensions. Mt. Besar's avian community is depauperate compared to Borneo's main mountains, and several of its species exhibit unusual elevational abundance patterns. We attribute these findings to the range's small area, low elevation, isolation from other mountains, depleted surrounding native lowland forest, and exploitation for food and pet-trading. ND2 comparisons indicate that at least 12 Meratus species exhibit population structure that merits additional phylogeographic study.