H.W.D.F 1963 Amphila ruficeps July 4 mi NW Silver City, Grant Co., New Mexico. Two ?? collected today had enlarged testes + clear protuberances. All birds were worse fit appearance that breeding has not commenced yet. Birds must be paired as singing is so reduced. ?? are spaced at 50-75 yard intervals along slope in groups. July 5 20 mi NW Cliff, Grant Co., New Mexico Singing ?? active on rocky hillside with scrub oak, Ceanothus, + Juniperus. Scrub was about 3-6 feet high. Junipers up to 15+ feet. Also scattered gross. ?? generally singing from tops of dead junipers. Where pursued they sing from on or near ground in dense cover - scrub oak, Ceanothus, or dead trees. Noticed that these birds only flew 20-50 feet when flushed- other days (other areas) birds would not allow the close approach (30-40 feet) they would turn + generally flew much farther when disturbed. One occasion I approached bird sitting on dead limb at top of 3 foot scrub oak. This bird was giving ??it notes with pumping of tail. Another bird nearby was giving chatter call. I shot exposed bird + 1st flew to base of juniper, shot was a ?. A 2nd bird joined by a 3rd. and stayed low in scrub