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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