On 30 May 1970 Xenia and Pierre Devillers and I found a Red-faced Warbler Cardellina rubrifrons at the Brock Ranch situated about 20 miles east of Holtville, Imperial County, California. This bird was alone in a cottonwood, and responded to “squeaking”, descending from the upper portions of the tree. It moved around rather slowly on the outermost portions of the limbs, remaining motionless, with wings partially extended and bill open, for short periods of time, for the temperature was close to 100°