Tuesday, September 18, 2012

Washington Park, Rocky Mountain Arsenal & Barr Lake

September 18, 2012

Richard Stevens:

Sue Ehlmann dropped us off at Buckley Road & 88th avenue and Bryan and I walked the four miles south to 56th avenue (outside of east end of Rocky Mountain Arsenal, Adams County).

Eventually we found 5 Burrowing Owls.  One of which was in Denver County just north of the clouds along Pena Blvd.  Using clouds as a waypoint?  We speculate these three clouds are quite expensive works of art and do not move.  Three of the Burrowing Owls were inside the arsenal near the number 111 on the fence (about 3/4 mile north of the Eagle bunker).

Other birds included 6 Say's Phoebes, 7 Rock Wrens, 38+ Vesper Sparrows, and a Wilson's Warbler (at Buckley and the creek, 0.5 miles north of 56th avenue).  A first year Bullock's Oriole was also near the creek.

Our only Western Kingbird sighting was at the old Eagle Watch Bunker parking area.  Hawks included 10 Red-tailed, 2 Ferruginous, and 2 Swainson's Hawks.  A male American Kestrel was the only falcon observed.

The best birding was along the creek from Buckley Road to Pena Blvd.  The fence is broken and there is no indication of "private or no trespassing".

Along the creek, we encountered 1 Cassin's Vireo, 1 Plumbeous Vireo, 3 Townsend's Warblers, 5 Yellow-throated Warblers, 1 Orange-crowned Warbler, a Hermit Thrush and one "empidonax flycatcher".

Four Burrowing Owls found along the DIA Owl Loop (3.4 miles east of Tower & 96th avenue), no Short-eared Owls.

Earlier in the day, I sent the following message to the "cobirders" mail listserve:

"Bryan Ehlmann and I found a flock of birds in the Honeylocust trees when we stopped at the northeast corner of Glenmere Lake at Washington Park. Trees were north of road, west of bike/walking road.

The birds stayed high in trees and among leaves. Flock included 4 Townsend's, 2 Yellow rumped, and Chestnut sided Warblers (this was at 2:00 pm).

Earlier at Barr Lake:
Townsend's Warblers north of banding area
Blackpoll Warbler at Pioneer Trail"

Richard Stevens; Director, Colorado Birding Society
Denver, Colorado
Contact CoBus/Report Interesting Birds: 303-324-7994
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Bryan and I had hiked the Barr Lake Trail from the boat ramp (mile marker 7.6) to the Niedrach Trail (0.5) and back.  Birding was quite slow.  Winds 6+ mph; temperatures in the 60s.

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