Date: 11/1/20 3:03 pm From: Patrick O'Driscoll <patodrisk...> Subject: [cobirds] Interesting geese at Denver City Park (Denver Co.)
The winter return of Cackling and Canada Geese has begun at Denver City Park. At mid-morning Sunday, about 1,000 total (two-thirds Cackling) gathered on the waters of Ferril and Duck lakes. Joining the ones at Ferril Lake were two separate Snow Geese (one blue morph) and a couple of interesting birds that, on first glance, appeared to be leucistic Cackling and/or Canada.
After looking at my pictures, I'm thinking perhaps they are Snow Goose hybrids. Both had hints of grin patches. One had a dark head and neck speckled and streaked in white. [image: image.png]
The head of the other hinted at the back-and-white face pattern of Canada or Cackling, also with streaky neck. [image: image.png]
Both were the size of a Snow or a little smaller, hinting perhaps at Cackling-X-Snow. They were among mostly Cackling Geese, too. Lastly, the two were hanging close to that blue-morph Snow Goose. (You can see its butt in the second photo, above.) Birds of a feather, perhaps?
Other signs of winter: about 80 Northern Shovelers scrumming at Ferril Lake, and a male Bufflehead and five Hooded Mergansers diving at Duck Lake (where three Wood Ducks, two males and a female, cruised the backside near the zoo).