Birds

Zone-tailed Hawk flying and calling
Type of Content: Image Content
  • Distribution, Abundance, Habitat, and Biogeography of Breeding Birds in the Sky Islands and adjacent Sierra Madre Occidental of northwest Mexico

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...

Type of Content: Reports, Papers, Journal Articles

A young pygmy-owl perched when the mother flys up and starts ripping apart a lizard and feeding it to her young.

Type of Content: Video

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...

Type of Content: Reports, Papers, Journal Articles

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...

Type of Content: Reports, Papers, Journal Articles

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...

Type of Content: Reports, Papers, Journal Articles
Type of Content: Video
Greater roadrunner
Type of Content: Image Content
black-capped gnatcatcher
Type of Content: Image Content
sulfer-bellied flycatcher
Type of Content: Image Content
hepatic tanager
Type of Content: Image Content

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...

Type of Content: Reports, Papers, Journal Articles
Eastern bluebird with young
Type of Content: Image Content
Blue grosbeak male and female
Type of Content: Image Content
Band-tailed pigeons
Type of Content: Image Content
Elegant trogon calling
Type of Content: Image Content
Spotted owl in oak
Type of Content: Image Content
Cactus ferruginous pygmy-owl with sideways head
Type of Content: Image Content
Cactus ferruginous pygmy-owl in saguaro
Type of Content: Image Content
Western screech-owl perched in ironwood
Type of Content: Image Content
Western screech-owl peeking out of saguaro cavity
Type of Content: Image Content
killdeer faking broken wing
Type of Content: Image Content
Chestnut-sided warbler
Type of Content: Image Content

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...

Type of Content: Gallery

Pages

Subscribe to Birds