LLWOLF 1969 Melozone kiierni July 23 Canion de Lobos, 5 mi. E. Cuernavaca, Morelos, Mexico 0810 - heard squeal version duet essentially the same as L. pilo fascus, but shorter. Then watched one foraging in shrub + vine tangle in wooded gully about 8 feet above ground. Moved thru vegetation rather deliberately -- peering about. 0940 - saw pair - hear 33333 aa note repeated twice from gully then silence. then tweet art followed by 333333 duet. Quinto July 27 Canion de Lobos, 5 mi. E. Cuernavaca, Morelos, Mexico 0640 - ? sitting at top of vine tangle in wooded gully -- peering in sun. & singing from just branchled. Just after & flew in direction of 3° duet squeal of pair version heard. Loud then faded off then loud again. 0910 - watched adult forage thru partly defoliated tree -- worked in canopy up to 10 feet above ground sitting + peering then peeling & moving on. Suddenly a 2nd bird flew in + 1st dropped down to shrubs & squeal duet ending in chatter. August 4 5 mi. E. Cuernavaca, Morelos, Mexico 0830 - sharp clipping by adult just off road. joined by a 2nd adult + heard squeal. Found nest about 4 feet above ground at top fork of shrub. Vine also growing up shrub. surrounded by nearly closed canopy at 10-12 foot level + 18± foot tree provides shade. Also shade from vine & shrub leaves. Nest of coarse twigs + grasses on exterior, lining of finer, short stems ≤ 1mm diameter. 2 young with sheathed feathers on all tracts & beginning to erupt on renipes, + main thunk tracts.