Murray 1948 13 Apr 12 9 mi W San Felipe, 700 ft +, Baja California little. Shot one imm. Callisaurus draconoides. Saw one blackthroated gray warbler, a plumbeous quailcatcher and several costa hummingbirds. Set out 50 live traps about 30ft up the base of the mountains. The mountainside is solid granite rugged rocks, largely decomposed. On it grows ocotillos, creosote and unidentified shrubs. I find that down on the flat is some cholla cactus. Tonight about 10PM we hunted around the desert. Saw two Dipodomys which became much confused by the lights. Almost caught one by hand. Apr 13 Same location Took in traps which had (♀,1♂ Peromyscus crinitus, 3♂ Perognathus spinatus. Put up the specimens and broke camp. A Costa hummingbird dove at our red handled broom. They are the commonest bird here and may be seen or heard at almost any time. Saw what must have been the work of a badger in the sand. The weather here has been hot but not uncomfortable. Drove back to San Felipe and then to Mexicali up the Mexicali road to El Mayor, on the Rio Hardy. On the way Dr. Benson shot a