Monday, 12 December 2016

[cobirds] South Platte Reservoir and Ken Caryl Valley 12/12

In the late afternoon I checked South Platte Reservoir and vicinity. The female Black Scoter continued in the Arapahoe County portion of the reservoir, pretty much in the middle of the southeast corner. An American Pipit flushed up from the shoreline there. The female Long-tailed Duck had moved to adjacent Blackrock Lake in South Platte Park, ARA, where she was feeding along the northwest side of the lake. 16 Greater Scaup were also present at Blackrock. A Prairie Falcon was at the Jefferson Co side of South Platte Reservoir, and presumably the same was later seen passing over Blackrock Lake. 

I timed dives of both the Black Scoter and Long-tailed Duck and they both averaged about 1 min. & 10 sec. underwater with little variance. Long-winded birds...

At Ken Caryl Valley I had a Wilson's Snipe along Massey Draw near the Lyons Hogback, and elsewhere a Harris's Sparrow, White-throated Sparrow.





David Suddjian
Ken Caryl Valley
Littleton, CO

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