[cobirds] CFO Presents Audubon's Christmas Bird Count in a Pandemic - now on YouTube

If you missed Saturday's presentation from Geoff LeBaron and multiple Colorado count compilers, it is now available on CFO's YouTube channel. Learn about this year's CBC season as well as some history of the Christmas Bird Count and information about how its data is used and what the data is telli

[cobirds] hybrid geese

There is, as to be expected, an influx of goose reports for our state. Via ebird, there are incoming reports of the gamut: cacklingXross's, cacklingXsnow, canadaXsnow, canadaXross's, snowXross's. How are these hybrids being specifically identified? Can anyone share some data or research of hyb

Re: [cobirds] hybrid geese

birdhybrids.blogspot.com has some fairly extensive discussion of waterfowl hybrids, with contributions from a number of Colorado birders. See, for example, http://birdhybrids.blogspot.com/2014/02/rosss-goose-x-cackling-goose.html or http://birdhybrids.blogspot.com/2014/02/snow-goose-x-cackling-go

[cobirds] Over the Weekend/Weld

Hi all Crom Lake had two Prairie Falcons terrorizing the large Red-winged Blackbird flock. Windsor Lake Lesser Black-backed Gull - 2 (on east pond ice and east end of Windsor Lake) Windsor Reservoir Lesser Black-backed Gull - 3 (a large gull flock loafing at overlook area in new residential ne