very far away. So far has been singing from 4 posts(bushes), all with a diameter of 40yds. Desert Sparrow pair singing near by, no effect. 10:58- has now moved 35yds farther east out of usual diameter & singing somewhere within wash ( Brewer Sparrow singing nearby). 11:00 - has now moved about 50 yds further yet & singing with average space between songs same 11:02- has gone even further yet up wash & is somewhere 150 yds E. of me but singing 11:03 - Has returned to within 50yds of usual dia & sang 2 times atop Artemisia. Took 10ys flight toward wash low over ground, let in middle of bush, hopped by steps to top, near top sang once, descended & think flew to another bush, sang only 1st part of song as the interrupted, pause about 10 sec. Sang once - flew to top of typeun, top-most twig sang 6 times, swinging head from side to side, descended into bush, not heard singing. Another heard far in distance on same side hill down Canyon. All these observations taking place at base of hillside (photo # 284) Seems to be only one in this vicinity. One heard singing 3 min. atop Laohua 150yds across canyon. Same one?