Gilmore 1926. El Mayor, 30 ft. Lower Calif. Mexico. April 25, 1926. of the fragments. Numerous Stelgidopteryx serrifemmes and Agelaius phoeniceus sonorums were found around a damp and flooded piece of ground next to an irrigation ditch accompanied by a few Molothrus ater. A Mimus polyglottos fleucopterus was perched on a near by willow near the water but was quite wary. Working back up to the gravelly fan I roused two Chordeiles acutipennis texensis from under a low shrub. They led me to a draw leading up into the fan in which I found some Vermivora lutescens celata and immature Auriparus flaviceps. On the way back I took a Cistothorus aberti which was on the bank of the ditch mentioned above. In the afternoon while in swimming saw numerous Tyrannus verticalis and A. p. sonoriums near the water's edge. Heard many Splintyz gambelli in the dense arrowweed. While setting some steel sets I killed a Cottontail rabbit in the arrowweed and one Chordeiles acutipennis, texensis Heard some owls just a while back.