Birds
This report summarizes my efforts to describe the distribution, abundance, habitat, and biogeographical relationships of breeding birds in montane vegetation communities in the Sky Islands and...
A young pygmy-owl perched when the mother flys up and starts ripping apart a lizard and feeding it to her young.
Resumen del Proyecto:
El Buho Manchado Mexicano (Strix occidentalis lucida) se distribuye en Sonora bajo condiciones adecuadas en canadas y elevaciones medias en montanas, can bosques de...
As initially projected, this report would have been considerably larger. Fuller discussion of the systematics of many species would have been desirable and the inclusion of life-history...
The pine-oak forests of the Sierra Madre Occidental, a mountain range in NW Mexico, have recently been recognized as an area of high endemism and biodiversity. Selective logging threatens three...
Investigations of processes that drive animal distribution and abundance are often approached at one of two different scales and therefore focus on different processes. At local scales, animals...
Alcatraz Island is in the actual bay of Bahia Kino and is primarily a nesting site for many species of sea birds. Accumulated piles of bird poop dominate parts of the island and are from specific...
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