Bird Notes: Aviary birds of the San Francisco Bay Region, v4289
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Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Chen hyperboreus. March 19, 1909. Of the three adult Snow Geese which I have, the one which I first obtained, in January, has considerable rusty orange on its face and on the feathers on the tibiae. The second one obtained has a little on its face, while one received yesterday has none whatever on it. This last bird, however, at one time had a broken wing which has knitted, and it, may be that it has lived a long while in Medced County, from whence it came, thus not being able to have accompanied the birds to and from their northern homes where they apparently get this stain on their feathers. Of the two young birds, the one first obtained in January appears to me to have lost some of the rusty orange color from its face. This is doubtless due to the fact that it is a moulting bird; it is continually losing its gray feathers in exchange for white ones. The second young one which was obtained re- cently was had little or no orange color on its face. It also seems to be getting white feathers in place of gray ones. I find a good many gray feathers from these birds about the aviary.