Four elevational range extensions of birds of the Western Andes of Colombia and northwestern Ecuador: Cuatro extensiones de las distribuciones elevacionales de aves de la Cordillera Occidental de Colombia y el noroccidente de Ecuador

R. Scott  Winton

Autores/as

R. Scott Winton Estación Biológica La Hesperia, Pichincha

Palabras clave:

birds, Ecuador, Colombia, Western Andes, elevation, range

Resumen

Research suggests that bird elevational ranges may be shifting upslope because of deforestation, habitat fragmentation or climate change. I present observations of four bird species that were encountered at a private reserve in Ecuador more than 300 meters above their known maximum altitudes in Colombia and Ecuador, including two that were recorded at altitudes higher than globally recorded maximums.

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