LLWb14 1964 Aimophila humeralis July 27 Cañon de Lobos, Gui. E. Chiapas, Mexico 4800+ft. 0832 - chatter by pair #2 followed by chatter of pair #5 + pitz-a calls from pair #3. Catter 2 pairs on N. side of gully. 0842 - pair #2 chatters twice (20 sec interval between) from 50+ yds uphill of tree #3. 0845 - pitz-a notes from 100+ yds N of gully - probably pair #3. 0850 pair #3 chatters from 100+ yds. N of gully. In "used range" 5' up at first main branching + other 1 foot higher. Both flying to S & wing flicking. One dropped down, other stayed in tree. Then flew to SW where chattered in shrubs - below canopy so not visible (0852). 0858 - pair #5 chatters followed by pair #2 (N. side of gully). 0902.5 - heard chips from area #1 + then pair #1 into 6' Beaccie where chattered facing to NNE. Followed by chatter of pair #3 were to S. of gully. One of pair 1 disappeared, other moved to 1'-foot above ground & foraged in shrub. Then flew off to S. Chips from downhills + then bird to SW to join other 4 more chips. 0920 - pair #3 chatters to N of gully as begins to rain. 0922 - as rain stops 1st of pair #3 sings to N of gully then pair #3 chatters followed by chatter of pair #5 by chatter of pair #3 by #5. Rain starts again at 0920. 0934 - pair #3 chatters following chatter by pair farther to N. 0940 - pair #3 chatters twice more.