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 -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com. To unsubscribe from this group, send email to cobirds+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/cobirds?hl=en.