Monday, October 16, 2017

Nice Afternoon at Rocky Mountain Arsenal

October 15, 2017

Richard Stevens:

Our first stop was Garland Park (Denver County).  The Greater White-fronted Goose was swimming with a couple of dozen Canada Geese on the southwestern lake.

Rebecca and I enjoyed this exquisite fall day at Rocky Mountain Arsenal (Adams County).  We circled Lake Ladora continued onto the Mary Lake trail to the Legacy trail.

The Common Loon was still on Lake Ladora at 3:00 pm.  Regrettably, it stayed along the eastern side and quite far from any path.  We only captured a few witness shots.

Marys Lake was interesting.  I played a Swamp Sparrow recording at the western cattails.  Two Song Sparrows flew out.  Then a Lincoln's Sparrow emerged.  Finally, a Swamp Sparrow popped up and perched on a leafless willow.  It even briefly sang!

I again played a recording at the eastern willows and cattails.  A skulky bird moved about; we thought perhaps a second Swamp Sparrow.  After 15-20 minutes, it came out of the willows at the southeast end of the boardwalk.  It was a Harris's Sparrow!

Afterwards we drove the Wildlife Drive.  Deer, both White-tailed and Mule were numerous in many fields.  We missed the Burrowing Owl that had been around for months.

Both Red-tailed Hawks and a Ferruginous Hawk stood on the prairie dog village at mile 8.  Once we left the bison enclosure, two Sage Thrashers were observed on the western fence.  They were about 100 yards south of the most southwestern cattle guard.

We returned to Lake Ladora and again found the Common Loon swimming along the eastern shore, far from any good photo op.

Misses: no Red-headed Woodpeckers, Burrowing Owls or uncommon passerines found today.

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