Thursday, May 12, 2016

Arapahoe County: Marjorie Perry Nature Preserve & Cherry Creek Reservoir

May 12, 2016

Richard Stevens:

Rebecca Kosten and I searched for the Northern Parula found by Jared Del Rosso at Marjorie Perry Nature Preserve (Arapahoe).    We did not find it; however, we enjoyed the experience with some nice sightings.

At the eastern end of the Preserve (where we thought the Northern Parula might be), we walked around for an hour or so.

While looking for the Parula many birds popped out of the willows along the canal.  These included a Northern Waterthrush, seven Yellow-rumped Warblers, a Yellow-breasted Chat, at least three male Common Yellowthroats and an "Oporornis" warbler.

At least I think MacGillivray's Warblers are still in that genus.  Rebecca thought the bird was a Mourning Warbler, myself thought a MacGillivray's Warbler.  It took another 50 minutes before it walked out of the low bush along the canal (just to left of the inlet/outlet stream with the yellow pipe guards). 

I would have preferred that Rebecca was correct.  Unfortunately I was.  In the brief first appearance, I caught glimpses of a partial eye ring on a dark headed "Oporornis" warbler.  AND scratch that.  MacGillivray's Warblers were changed/moved to the genus Geothlypis, had to look that up.

Suddenly, a tornado of bees (300+) circled overhead and moved toward the trail.  As we watched them approach, we noticed a Nashville Warbler high in a cottonwood tree (just to right/west of the above inlet/outlet canal).

When we continued counterclockwise around the Preserve (by way of the Highline Canal trail), many additional birds found included five Common Yellowthroats, one Yellow-breasted Chat, and another Northern Waterthrush.

This Northern Waterthrush was along the canal and about 10 yards south of the most eastern pond at the preserve.

The Green Heron reported by Jared at the most eastern/southern pond was not found by us.  However, later we found a Green Heron on the most western pond (the one with the wooden bridge at its northeastern end).

Note while the ponds are situated east to west, I prefer northern to southern, which they are also.

Many Common Grackles, Chipping Sparrows, two American White Pelicans, a Double-crested Cormorant and one Great-tailed Grackle were also at the Preserve.

Later, Rebecca and I stopped at Cherry Creek Reservoir (Arapahoe).  The Black-chinned Hummingbird is back at the ranger's office.  Three Broad-tailed Hummingbirds were also in the area.

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