john-e-thayer-and-outram-bangs documents

Another Hybrid Hummingbird: Selasphorus rufus + Atthis calliope: From California
Documents Another Hybrid Hummingbird: Selasphorus rufus + Atthis calliope: From California
A Collection of Birds from Saghalin Island
Documents A Collection of Birds from Saghalin Island
Regular Breeding of Alice's Thrush in Arctic East Siberia
Documents Regular Breeding of Alice's Thrush in Arctic East Siberia
The Black-Backed Kamchatkan Wagtail, Motacilla Lugens Kittlitz, in Alaska
Documents The Black-Backed Kamchatkan Wagtail, Motacilla Lugens Kittlitz, in Alaska