C. nigricaudatus 42a Rancho Oreong, 16.1 mi. SE Tonala', Chiapas April 2 Wrens are in small groups - 2-4 birds. Took a picture of a possible nest. The songs are: most frequent ① Pico-what or Pico-weet ΠΠ I , ΠΠ I sometimes given quickly several in succession and occasionally given slowly and sweetly, In any event this is the most frequently given variation of the song, ② pe-e-co?wee (gua), pe-e-co?wee (gua) Not a frequently heard variation. ③ oo pi co?weet - heard once, ④ we-do-it, we-do-it, we-do-it ⑤ week-o-wat-da - not frequent ⑥ oh-wee-tho-weee-wa - not frequent ⑦ who?wee, who?wee, who?wee, who?wee given fast. This is frequently heard, Notes: a guttural, rasping gua, gua-gua-gua (run together). I did not note many occasions when the birds duetted but I am sure they do. We found wrens rare along the stream but generally distributed in all vegetation in the area - although entower areas & edges of these areas are preferred habitat.