E. U. Miller 1940 General Account. I took 1 Dryobates scalaris, 1 Tostoloma cumirostrum, 1 Clay-Colored Sparrow (See Bailey's Handbook), and one Blue-throated Hummingbird. In the afternoon I set out 49 more wooden mouse traps and 10 more Schuyler no. 1s. These were all set on a rocky "hogback." Some at the base of the steep rocks of its side and some on top. Medium thick brush and cactus up to 6 or 7 ft. high covers it, where not too rocky. This is the island upon which we are camped. March 29 Picked up my "Museum Specials" - Took 5 Perupgeus longii in the 50 left out from the previous night and 7 of the same species in the 49 set yesterday. Sexes 5 M, 5 F, 2 unknown (sex). Put up my Cactus Woodpecker shot yesterday and saved my Clay-colored Sparrow as a skeleton. March 30 We left yesterday's camp in the afternoon, drove back of the river, where we collected a frog and several small fish. The river is called "Santa Catarina" by the natives and is a small, cool stream. We drove up to a position location on the ranch of a native: 2400 ft., Rancho Rodeo, 7.3 mi. S Santa Catarina, Nuevo Leon. In late afternoon here I set out 50 museum specials along a low brush fence lined with medium sized, foliated trees. This morning I got from the traps 3 P. longii 1 M, 2 F, and 1 M immature P. leucopterus. Shot two bats last night but could not find them. During the day I shot from the trees over our camp a Golden-fronted Woodpecker and a Black-crested