LLWOLF 1964 Oriturus superciliosus August 11 2 mi. N. Tres Cumbres, 9100+ ft., Morelos, Mexico 0930 - 0950 - followed group of at least 6 Bird (2 ad., 2 jun. 2?) in pine-bunch grass area. First found where one flew up to stub kind of pine - 8 feet up, joined, while chipping softly, by a 2nd bird which worked rapidly up toward top of 50+ foot pine + then flew off to W + landed in bunch grass- two other already there. While 5 other birds moved to N in several flights landing on/in bunch grass + once on lava outcrops. Bird on stub sat chipping then moved to W 50+ yds. to electric lines. Birds on ground split into two groups - 7 going back to S + 1 other going slightly farther N. Birds from S. then heard several times giving dry chatter. Saw bird from N drop into bunch grass giving chip notes. One then 2 others from S. flew over. One from S. landed on lava rock + sat with tail cocked at 60°, put a rock extended. Then also dropped down to ground. 1006 - after chipping for 3+ minutes, 7th bird from S. flew to lava rock + 6 feet above ground. Tail slightly elevated. Then flew, glided (fluttered to) ground in bunch grass while giving tziit notes (chipping). 1040 - 1120 - watched pair forage near car. At first were on nearly bare ground where lints cut made during road work. Moved along by hopping on occasionally tilted bill at 30° L above horizontal + even less often gave chatter call. Once other adult ran toward it carrying approached bill to jump, turn in air, then chatter facing 1st bird when landed. Moved up onto bank + third bird flew on up hill. Two birds foraged on open slope where grass < 3 inch tall + up to bunch grasses + around base of 7-foot pine. Then flew over to tall pine to W + then down to ground 150 yds to N, foraged here in grazed field - mostly away from bunches