Re: [cobirds] Broomfield \ Geese \ Raptors \ Virus

In Denver City Park, with about 4,500 mostly Cackling Geese overwintering between Ferril and Duck lakes and the City Park Golf Course fairways, there are what appear to be two dead Canada/Cackling Geese -- one in ice toward the back right corner of Duck Lake, and the other in ice in the west part of Ferril Lake, between the pavilion bandstand and the big central lake fountain. (Both lakes are still more open than iced over.)

Goose carcasses in winter are not common. but not unheard of, either -- like these, rather stray, or one at a time.

Still, I'm watching the flocks for any additional casualties that could suggest or indicate something like flu.

The bulk of the flocks arrived in early November, but we still get new birds -- witness three Greater White-fronteds and 1-2 Snows in the past week or so, in addition to four Snow Geese (a pair of immature siblings, and two adults also traveling together) that have been in the park for a couple of weeks (the adults) and about a month (the younger ones).

Patrick O'Driscoll

Denver

On Tue, Dec 13, 2022 at 10:02 AM John Tumasonis <snakemonev@gmail.com> wrote:

Hey All:

              An update in Broomfield:

I found two dead Canada geese at Brunner Reservoir, in Broomfield.  One is dead on the ice - complete body untouched (so far).  Another dead on the shore, plucked out, with most of the carcass gone (probably a raptor kill).   There are several red-tailed hawks in this area.   This area, and the pond next to the Library, are crowded with cackling and Canada geese.   People are still (illegally) feeding ducks and geese at the library location.  Worse - they are feeding them white bread, which as I understand, can make waterfowl sick or kill them.  

Geese are crowded, in several locations in Broomfield and the amount of goose poop all over the walkways and adjoining lawns, has to be seen to be believed.  (harassing tactic may be necessary?).   The geese ignore the fake coyote cutouts at the library pond.   Until the lakes freeze over, and more dispersal takes place this will be major problem.  

Noted: birds in Broomfield:

Bald eagles

Red-Tailed Hawks

Kestrels

Dark Morph Ferruginous Hawk - 1

Snow Goose - 1 at library pond;  1 at Siena Pond (not Siena Reservoir);  3 blue morphs at Siena Pond also;   1 at Stearns Lake (Boulder County)

Ross's Goose - 1 at Stearns Lake (Boulder County)

Canada Goose - thousands

Cackling Goose - thousands

Canvasback - 7 still at Brunner Reservoir, but lake is freezing over fast

John T (Tumasonis),  Broomfield CO

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