Of the approximately 716 bird species that breed in North America, 386 (54%) are
considered Nearctic–Neotropical migrants by the US Fish and Wildlife Service. In the past …

The tropical Andes are characterized by extreme topographic and climatic complexity, which
has likely contributed to their outstanding current species diversity, composed of many range …

Migratory birds can be familiar winter visitors of Neotropical cities. However, of the regional
migrant species bird pool, only a few species are abundant in urban areas. Their presence …

ABSTRACT I use point-count survey data collected from 171 locations across 11 vegetation
conditions in western Mexico to illustrate common patterns of winter habitat use by 97 …

Migratory birds can spend 8 months of the year on their wintering grounds and the
conversion of natural habitats to agriculture in Latin America has been implicated in …

ABSTRACT Populations of Vaux's Swift (Chaetura vauxi), like those of many aerial
insectivores, are rapidly declining. Determining when and where populations are limited …

Habitat selection on the wintering grounds and stop-over areas is crucial for migratory bird
survival and for a successful migration during both the migratory and wintering periods …

The Blackpoll Warbler (Setophaga striata) is a rapidly declining Nearctic-Neotropical
migratory bird that breeds across the boreal forest of North America and migrates to South …

Neotropical migratory birds exhibit surprising variation in wintering home range size. Such
variability reflects the fact that, within the same species, space-use strategies can range from …