E. Aldrich 1938 [Amphispiza b. deserticola] Desert Sparrow 2 mi. NNE Cima, 4100ft., San Bernardino Co., Cal. May 13, 1938 9:15 - Noticed bird carrying nesting material and went to bush (sp?) where last seen. Found a nest (description later) about 3/4s completed. Can hear other Desert Sparrows singing about 40yds away. One 15' atop dead Joshua singing: Tree-tree-teeledle the 2nd note higher than first & song ending in more or less a warbling trill. Am now sitting behind a bush 20 yds away from nest. Birds seem to have left area since my entrance. Have seen lately near camp one bird chase another, then immediately fly atop bush or tree and sing. This may indicate a territory. Nest Description: Ht. Bush -- J -------- 2'4" " Rim of nest -- -------- 1'4" Outside dia of nest including all twigs -- -- -- 16cm. " " " " " " " rt Ls -- -- 12cm Inside depth -- -------- 9cm " dia. (round) ------------------ 5cm Outside depth -- -------- 9cm. Nest in center of bush, made entirely of dry grass and the interior is of shredded grass - Nest interior still rough.