LC5018 1964 Aimophila rufescens August 8 Sui.E, Cuernavaca, 5700ft., Moulos, Mexico sing in field west of fence. works from 2' put up to near top - singing as goes up then sings from exposed perch (type B song), but shaded by top leaves. fence Flies 30+ yds. to NW + drops to dead limb lying 1-2 foot above ground. works along this then drops into weeds. forage sing back onto limb then back to ground where forages + sings. forage flies up + over to edge of shrub thicket while squalt: no sign of ♀. then works to ground + forages silently. 1050 - sings 2 loud, successive continuous songs. then quiet. sing 105(5- singing infrequently + softly from 1-2 foot above ground in small shrub in field west of fence. 1055 - ♂6 up into lower branches where hear squalt - still no sign of ♀. ♂ then out into field 10+ yds. to smaller shrub where gives short squawk + flicks left wing for 5½ sec. then sits quietly, or begins to sing to SW + ♂6 flies off to other side of field (to S) squawk wing flick + sings several times. ♀ comes up from ground on N side of field into lower branches of tree + works to 3-4 foot above ground. ♂ squawk ♂ immediately flies over + squawk answers. can only see ♀ + she flicks right wing for 5½ sec. not sure if she squawks. Both birds then forage in tree canopy until ♂ to SW begins to sing again + ♂ flies again to other side of field + counter-sings. Two ♂♂ forage dispute sing different songs. ♀ continue to forage in over foliage working to top at 15-2 feet several times. Then turns goes into same thin tauge at top + seems to pull at same item each time. Then in 10+ yds flight to E (tail depressed) goes to next tree + disappears in foliage 15+ foot above ground. ♂ silent by 1109.