Date: 3/25/21 1:17 pm From: DAVID J WALTMAN <djwaltman...> Subject: Re: [cobirds] Boulder White Goose ID
The bill is smaller than on a Snow Goose which I think comes from part Ross’s. Also, the base of the bill is almost straight like a Ross’s instead of an arc like a Snow. David
On 03/25/2021 12:59 PM 'Deborah Carstensen' via Colorado Birds <cobirds...> wrote: What are the attributes cause you to think it’s part Ross’s goose? Thanks for the thoughts on that.
Deb Carstensen, Arapahoe county Sent from my iPhone
On Mar 25, 2021, at 8:14 AM, DAVID J WALTMAN <djwaltman...> wrote:
Yesterday, 24 March, I photographed an interesting white goose at Prince Lake #2. It was roughly the size of nearby Canada Geese, too big for a Ross's Goose. The bill was too large for Ross's and did not have the perfectly straight vertical base of a Ross's. The head was not perfectly round like a Ross's. The bill appeared too small for a Canada Goose and did not have a significant grin patch. In summary, the head features were intermediate between Ross's and Snow. I conclude that this is a Ross's Goose x Snow Goose hybrid. See attached photo.
-- -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to <cobirds...> For more options, visit this group at http://groups.google.com/group/cobirds?hl=en?hl=en * All posts should be signed with the poster's full name and city. Include bird species and location in the subject line when appropriate * Join Colorado Field Ornithologists https://cobirds.org/CFO/Membership/ --- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+<unsubscribe...> To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/<2147430020.194440.1616681635360...> <Ross'sxSnowGooseP1200050.20210324.jpg>