CO birders :
My first visit to these series of ponds in Broomfield around midday today
revealed some goodies . Most of the action at this time was at the Anthem Ranch
ponds where in a 45 minute span we had 2 1st cycle Thayers , 1 1st cycle
Glaucous ( very white ) , 1 adult Lesser Black- backed , 1 1 st or 2 cnd cycle
Greater Black-backed Gull ( I incline to 2 cnd cycle because of the white upper
tail coverts ) and 1 1st cycle Glaucous-winged Gull . The Glaucous-winged stood
out by it's greater size than corresponding Herring Gulls , uniform broad pale
upper wing and tail in flight with mottling , large all black bill , very
aggresive in behaviour dominating a immature Herring Gull for prey. . Very
windy conditions made it impossible to get photos however.
Siena Pond in the time we were there had just an adult Lesser-Black-backed Gull
of interest . There was constant comings and goings so we could have well
missed other rarities . These ponds are outstanding for allowing close views
for larophiles .
John Drummond
Monument
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