P. DeBenedictis 1964 June 6 Lower Colorado River, Imperial Co., Calif. woke up shortly before dawn. A Western Kingbird was singing loudly and c. 10 min later the Vermilion Flycatcher started singing and kept on until 15± min before sunrise. It sang only from perches (a white fence & the mesquite trees) the most common song "pt pre-ee-en pt pre-ee-en", lasting 3/4 seconds. It also had a longer version "pt pt pre-ee-en pt pre-ee-en pre-ee-en pre-eeeen ... ", c. 2x as long as the 1st song. Saw no aerial flight song. After song dead ceased, both birds of the pair began feeding, visiting the nest in rapid succession, often often only 1 or 2 captures. Foraging was restricted to two levels, and saw them take food off the ground and pick a (moth) of the bark once. Also at the spot here was 2 Hooded Orioles, a pair of Gila Woodpeckers, and house sparrows. We went to Liest Pond where the Franklin's Gull was still present, + 6-8 Redheads and 2 Faced Grebes. A Great-tailed Grackle flew in from Arizona and landed in a bush just opposite - Guy blocked it, a worm ?, prob. not breeding. Saw another ♂ Vermilion Flycatcher along the road, and heard at least 2 Trail (Willow) Flycatchers singing. The Vermilion was silent and was soon lost to sighted. Lots of Blue-Grosbeaks. We went to the spot above Laguna Dam we visited last night and found a pair of Wied's G. Flycatcher at the same spot. Think I saw