Gilmore 1926 El Mayor, 30, Lower Calif. Mexico April 24. edge. I found a nest of a Pipilo calberti in a small willow thicket. The nest, containing three small birds about 2 weeks old, was about 8 ft. from the ground and located in a crotch against the trunk. The nest was quite shallow and the mother bird could be seen on the nest before she flew, when an approach of 3 or 4 ft. Saw several pairs of Tanivireo solitarius cassini were seen among the willows. One pair of Myiarchus cinerascens c. was seen in a willow thicket. A small wood- specker probably a Calyptorhynchus, along the river bank were numerous Agelaius phoenicea Sonoriensis and Tyramnis verticalis. One pair of Zenaidaura macoura m. was seen. The region worked is flat overflow land of the Hardy River dotted with scattered willows willow clumps and small draws filled with arrowweed. Along the bank some willows grow together with from a bamboo-like plant and a deciduous plant that bears a oval sharp burr.