Remsen, J.V. 1977 Kentucky Warbler Oporornis formosus May 27 East Mojave Desert, San Bernardino Co., Calif.: 1 ♀ watched for 2 minutes in dense undergrowth of Fort Piute, within 200 yards of the upper limit of the riparian growth. As I was walking up the stream bed, I flushed a warbler from the edge of the stream and I remarked to Steve that although it had a yellow belly, it was larger than a MacGillivray's (and smaller than a chat). I scanned the undergrowth upstream and there it was, sitting in the open at the edge of the undergrowth, preening itself (it must have been bathing) about a foot off the ground. I got Steve Cardiff onto the bird and we both crouched and watched it as it preened for 2 minutes about 25 feet away in good light. Description: a large, heavy warbler, more or less the size of a Northern Waterthrush; upperparts entirely greenish; wings grayish, without wingbars; forecrown darker than rest of crown but not solid black; conspicuous yellow eyebrow which curved downwards behind the eye to loop around and form almost a complete eyering; lores blackish and this darkness extended down as a point into the face; underparts were entirely bright yellow Some imm. ♂ Yellowthroats show a projection of darkish down into the cheeks but they lack the conspicuous yellow brow and looping eyering shown by this bird and they are not uniform yellow underneath.