then 1927 Colorado River, lower Calif., Mex. 20 mi. S. of Pilot Knott Oct. 23, 1927 2 steel sets caught nothing. 40 mouse and rat traps caught one perognathus ♂, one Baithrodontomys ♂, two peromyscus ♀♀, 860 Perognathus ♂ 19. g 173-84-21-5 caught under arrow weed sandy soil. Moved or steel set to a point 20 ft from the railroad track about ½ mile north of Camp. It is located in the willows where there is a top crust of clay and underneath is the same sandy soil. The ground around the set is heavily covered with willow leaves. There were many coyote, skunk, and corn tracked on the levee this morning. The railroad track runs on the levee. I shot an immature male spring or pintail duck today. Tonight I set 3 gopher traps as well as resetting my mouse traps and steel sets. I put some dried millet around the steel sets as well as bird food.