Friday, 10 October 2014

[cobirds] Crow Valley CG on 9Oct14 (Weld)

Here's a report from yesterday.  Crow Valley was pretty quiet (11am-3pm) in terms of both campers and birds.  But it is always interesting.

Best birds were probably two White-throated Sparrows in the thicket south of the Main Picnic Shelter.  A taiga Merlin buzzed thru the Group Area in early afternoon.  Three species of warblers were present: about 20 Yellow-rumps, 4 or so Orange-crowns, and 2 Wilson's.  There were a few winter arrivals such as Dark-eyed Juncos (pink-sided and slate-colored) and a Brown Creeper.  North of the Group Area on the long north-south straightaway to the gate that goes out into the Mourning Dove Trail/Primitive Camping area are a few buckthorn shrubs (Rhamnus sp.).  These shrubs with gray-green leaves are across the path about 20 yards west of the gate.  They usually have something of note and yesterday they hosted a Blue-gray Gnatcatcher, a couple Ruby-crowned Kinglets, and a couple Orange-crowns.  The subject of their interest was an unidentified species of winged aphid present on many leaves and perhaps nymphs of a psyllid-like insect, also present on the leaves, called a triozid (thanks to my friend Boris Kondratieff for the ID of these).  A late Gray Catbird was also in the buckthorns.  In the "Magic Russian-Olive" just north of the gate by the sometimes waterhole (which presently has water) were three solitaires, robins, several Yellow-rumps, an Orange-crowned, plus a late Western Tanager.

Total of 27 species (including 3 from the town of Briggsdale), down from the lists in the high 40s I had during 3 unthorough visits in September.

Dave Leatherman

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