Chestnut-Backed Chickadee in the Sierra Nevada
Chestnut-backed Chickadee in the Sierra Nevada.-On June 17, 1951, a flock of five Chestnut-backed Chickadees (Parus rufescens) was seen along the Big Trees Trail in Calaveras Big Trees State Park, Calaveras County, California, at an elevation of about. 4700 feet, by nine members of the Golden Gate Audubon Society (Gull, 33, 1951:27). The birds were observed at close range in good light for about 15 minutes. There was no sign of a white eye-stripe on any of the birds; the chestnut patch on the back was seen on several of the birds as well as the brownish wash on the flanks. [New locality records of this chickadee supported by specimen evidence should be sought in the future.-Editor.]-A. LAURENCE CURL, El Cerrito, California, June 20, 1951.