R. K. Selander, 1954 O. chiapensis 2 3/8 mi. SSW Tonalá', 100ft., Chiapas, Mexico March 19 the late afternoon & early evening. I questioned a Mexican who came to our camp tonight- He said that the chiapensis is abundant here but that the smaller chaneucas are "rare". Lonble's boy - Selalis- collected one O. chiapensis this afternoon somewhere SSW of camp. He reported seeing another. The same Mexican who visited camp tonight said that the large cactus were lays its eggs in June - but this undoubtedly is incorrect because Brockles data indicated breeding before June, March 20 Heard first calls at 6:12 A.M. this morning. A few minutes later I saw two fly up from the ground near camp and across the road into the vegetation opposite camp. 1 mile (=NW) along road to Arriaga - 2 groups located. of worms (chiapensis) One centering around a large mango near a house with or nest in a large bush-tree (not an ozacia), Saw two & three birds singing together in the top of the mango. The birds were perched close together and all fanned out the tail while singing. No eggs in the nest but it was in good repair. Watched one bird foraging in a small pile of branches which a Mexican had cut.