LL Wolf 1964 Passer domesticus June 16 Around San Angelo, Tom Green Co., Texas beginning 10+ miles W of San Angelo + also several miles east noted that House Sparrows were nesting on every 2nd telephone pole which bordered dense mosquite woodland. Occasionally saw nest in sparse mosquite but not as regular. Found that birds were using a V-shaped insulator support for their nests, + these were only placed on every 2nd pole which partly accounted for even spacing of 80+ yards between each nest. Around several farms noted nests wedged between main pole + crossbar so the birds could have put the nests closer together. Three poles held two nests usually on 1st + 3rd crossbar, one near main pole + other more distal. The V-shaped supports were on all 3 Gers or proxy poles. Not sure if these doubly placed nests were both active.