Subject: Re: greater white-fr. geese
Date: Jan 23 11:01:30 1998
From: "Robert Taylor" - taylorrt at foxinternet.net


When Mike asked the question below I went to "Handbook of Birds of the
World" (one heck of a big 'hand'book!!) and here's what it says:

Anser albifrons albifrons - N Russia and Siberia from Kanin Peninsula to R.
Kolyma
A. a. frontalis - E Siberia from R.Kolyma eastwards to Arctic Canada
A. a. gambelli - taiga of NW Canada
A. a. elgasi - SW Alaska
A. a. falvirostris - W Greenland

Status and Conservation. Not globally threatened. Generally widespread
and abundant, although some races scarce: 'falvirostris' amongst the least
numerous; only 1200-1500 individuals of 'elgasi' located in 1973-74 census:
largest known concentration of 'gambelli' was 7990 birds at Tanusi and
Panuco Deltas, Mexico, in winter 1980, and this race appears to be very
uncommon in the USA. Mid-continent wintering populations of N. America:
102,000 in W, where noted to be decreasing in 1989; in C, has increased
from 39,300 birds in 1970 to 116,500 in 1988; in E, 86,000 and increasing.
In Japan, has risen from 3,000 birds in 1971, when hunting banned, to
19,000 birds in winter of 1987/88, almost all of race 'frontalis'. Winter
population of Netherlands c. 300,000-400,000 ('albifrons'). Intense
pressure from hunting in some places. Habitat destruction is main threat,
especially significant for less numerous races.

The rest of the information is basic ID, feeding, Breeding....

Bob
Federal Way, Wa
taylorrt at foxinternet.net
----------
> From: M. Donahue <mgd at u.washington.edu>
> To: tweeters at u.washington.edu
> Subject: greater white-fr. geese
> Date: Friday, January 23, 1998 9:47 AM
>
> I went down to Coulon Park on Tuesday, and found the flock of greater
> white-fronted geese. There were 10 individuals, with one distinctly
> longer necked than the others, and it's head and neck were much darker
> brown--a deep chocolate brown. The birds were on the water the whole
time,
> so I didn't get to note any differences in their underparts. I have
> several nice slides comparing the two "types."
>
> Does anybody out there know about the subspecies of GWFG, and if we
> typically have more than one migrating/wintering in Washington?
>
> Mike Donahue