Saturday 22 November 2014

RE: [cobirds] Rocky Mtn Arsensal NWR -- Adams County

Hello,

Just to start, let me say, no rarities -- just many old friends on a day of changing weather (Saturday). 

The lake status update at the Rocky Mountain Arsenal NWR:   After our early November deep-freeze, Lake Mary, Lake Ladora and the Havana Ponds are completely frozen and ice covered.  I did not hike out to the Rod and Gun Ponds -- but would presume that since they are small ponds/lakes, they are frozen over as well.  Not much bird-action happening at these ice-covered lakes though I did see deer, prairie dog and coyote.   

However, there is still significant open water at Lower Derby Lake -- which is visible from 6th Avenue (64th Avenue).  This lake is closed to public walking access around the lake, but is easily visible from the paved road.   Binoculars or a spotting scope definitely help. 

Canada Geese (thousands) and Mallards (many) -- and a very vocal group at that.  However, as might be expected, there were many others mixed in including American Wigeon, Gadwall, Redhead, Ring-necked Duck, Lesser Scaup, Common Goldeneye, Bufflehead, Hooded Merganser, Common Merganser, Blue-winged Teal, Northern Pintail, Northern Shoveler (scores), Snow Goose (1 stand out among the Canada Geese), Pied-billed Grebe, American Coot (scores) and Ring-billed Gull (scores).   What kept it all interesting were the Bald Eagles -- one mature adult and 5 immature adults.  As one might imagine, their passes over open water were quite a spectacle.  At one point, on the ice-shelf at water's edge, there were 6 Bald Eagles in various stages of maturity including one stunning mature Bald Eagle.   At the inlet to Lake Ladora just below Lower Derby Lake, I did see a Belted Kingfisher. 

Elsewhere at RMANWR, I did see American Robin, Starling, Black-billed Magpie, Red-tailed Hawk and Mourning Dove.  I was hoping to see at least a few sparrows or finches -- but none seen today (seems strange -- perhaps our unseasonable cold weather plays a role).  Thanks for everyone's great reports -- I'm indebted to everyone here.   

Ben Kemena
Denver, Colorado

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