K. Selander,\n1954\n21\nSE Tonalá, Chiapas, Mexico\nMarch 25 Songs in duet of the type were of short duration and immediately after the two birds parted a bit and continued foraging. When ducking the birds perch close together or more clear one another. The tails fanned and a down as in chiapensis, the bill is pointed up at an angle and the neck stretched up and puffed out, the wing are lifted out a bit and drooped — a definite posturing very similar to that of chiapensis. Generally these small wrens are more active than chiapensis and hence are harder to approach and study although I doubt that they are really waries.\nOne duet went like this:\n? (at least the larger more active kind) sang\n"coo-hee" - "woo-hee" - "coo-hee" (two notes only)\nwhile the ? sang a song fast "ta-we", ta-we-\n"ta-me".\nAnother duet heard as follows:\n? ? "whew-too", "whew-too", "whew-too"\nwhile ? gave a fast claw-claw-claw-claw\nrather soft than the other.\nSketching singing posture: