R.K. Selander, 1952 52 August 25 "Montosa Island", sea level - 30 ft., Laguna Coyuca, Guerrero, Mexico. Camphylarches humilis - common - singing! Turdus sp. - Common. Same species as on mainland. = rufo-pallidus Cassiculus melanicterus - fairly common. Icterus spurius - In large flocks. One specimen taken. Combird (??) - large flock - one taken = T. aeneus Cassinix mexicanus - common Collected three lizards (small) on rocks at shore. Saw 2 lizards about 15 inches in total length; Heavily built. Very wary, slipping into holes between large boulders as I approached. Returned to bungalow at 4:00 P.M. Continued writing field notes. Prepared six specimens of lizards. August 26 Hunting until 11:30. New birds for the area include Aratinga canicularis - flock of +/- 100; 4 taken. Aimophila traillii acuminata - one taken; 3 others seen. Icterus sp.? - one taken; larger than specimen of Icterius taken August 23. = Icterus pustulatus. Noted a single magpie-jay (saw and took one Aug. 21) Collected an Empidonax?, a Cassiculus melanicterus and 4 C. humilis. Skinned 13 birds today. Identified Volatinia jacarina by shooting one (not prepared). Quite common in thorn-scrub along the foot hills (at least) and in drier fields and open areas.