K. Selander, 1954 C. chiapensis 3 mi. SSW Tonalá, Chichipas, México March 22 but usually two or more sing together. The song alone is a simple "chang - gua - caug" "chang - gua - caug" but when 3 birds sing they are not together in rhythm and each bird I think that sometime each bird sings a different series of notes. When disturbed the usual note is a rasping "gua > gua " "gua > gua " or a simple "gua." The foraging notes are similar but softer and less excited and rasping. Birds seem to an- suer one another with these notes when they are foraging some distance apart. On the ground the wings drop and the tail is cocked at an angle. At 6:30 P.M. a group of wrens were foraging and calling "gua - gua" from a pile of dead limbs across the road from the east-nest tree. After flying to the mango tree near camp they returned to the pile of limbs and then one-by-one flew up to the nest tree and entered the large nest above the small nest & nest remainder. 5 entered - then a sixth flew up before the entrance - called a few times (Gua) and entered as one other f[ot] came out of the nest and flew down the road to-