Quast 1948 Tadarida femoraceous 2 June 4 6 mi N. San Jose del Cabo, 250' ft, Baja California species I saw flying up the wash yesterday at dusk. Specimen was found next to a medium sized colony of Myotis velifer. The accumulated dropping from the two species had forced them into one small section of the crevice. Crevice was about 50 yds east of cave containing M. californicus. June 6 1 mi N. Cabo San Lucas, 20' ft, Baja California shot two males and one female last night at dusk. Specimens were flying over cleared field near camp and were flying quite high. Many long and spectacular dives were noted, the species coming within 10 feet of the ground, and then resuming flight direction and slowly climbing up to the original altitude. This species does not circle in flight as many others but seems to prefer to fly in a straight line high above the ground, and then to dive upon its prey. The original direction of flight is almost always resumed. This species flies fast and is difficult to shoot when flying with the wind. Specimens no 313, 314, 315. July 12 27 mi N.W. Punta Prieta, 2000' ft, Baja California One male #451 shot last night as it flew over camp at late dusk. This specimen was first noted by the high, almost inaudible, note it was emitting as it flew singly, high in the air, over camp.