R. K. Selander, 1954 19 near Rancho Santa Julia, near Ocosocoantla, Chis., Mex. April 24 At 4:00 P.M. drove out to above locality with Bonifacio and Alvarez del Toro to hunt nighthawks. Just before dropp- ing into the Ocosocoantla valley we took a dirt road which ran towards a series of low, rolling hills covered with short, dry grass. In the small draws grew & dense thickets of small trees and shrubs and in some spots there are a few large trees. Many of the trees are clothed with epiphytes, which looked rather dry at this season. I took 2 photos (B&W, Roll 21) of a typical situation where nighthawks occur, according to Alvarez. Alvarez said that C. zonatus occurs in the patches of vegetation where large trees are present. He said that in some places it is possible to find groups of 8-10 birds — he said the species is not rare and not common. The patches of trees with their cover of epiphytes probably are good habitat for zonatus and towards the hills which we did not get to; there undoubtedly is a good tall forest. Alvarez calls this "rain forest" but said it is quite some distance from the Rancho Santa Julia (which is about 4-5 miles from the highway). At the place where we stopped the wind was blowing hard and cold from the north and clouds were blowing in low over the ground from the north. At about 6:30 we saw a lone Chordeiles minor and later we saw two others flying low and fast over the pockets of vegetation and rolling grassy hills. Twice I heard the "peent"