28 h605/14 1964 Journal July 5 Walter Wildlife Foundation, San Patricio Co., Texas Cuckoo nest to observe & try to discover food parents are bringing to nestlings. Early morning was quiet except for myriads of Drosophila-like flies that crawl all over birds eyes, nose, ears, & mouth. After I shot a bird which bled considerably I noted several of them flies gorging on the blood. Collected Cassin family groups several lone 5's in early morning. By 0730 it was beginning to get warm & found several family groups of Cassin's Sparrows. Hard to collect adults from these groups. Dick arrived to say that group were gone so he was going to another area to look for Cuckoo nests & to collect lizards. After 0800 I had difficulty locating groups of sparrows - even more trouble hitting any. About 1000 found mixed group of Vermios, Desert Sparrows, Bewick Wrens, & Painted Buntings. Managed to get a worm bunting. Probably partly tributous group some members attracted to alarm calls. 5's Cassin Sparrows singing still singing as we left area at 1015. Tried to collect a 5' singing from fence post on way back. Hul lunch & prepared specimens. Wrote up list of species seen on the Foundation for Dr. Cottam. Also plan to give him 2 birds - Bell Vireo & Brown-headed Cowbird. hawks Then back into field. No luck. Found Cassin's Sparrows sit very tight in clumps of running mosquitoes - probably on ground - Zither flush from underfoot or long before one arrives. Fly for long distances & disappear. Had supper & talked to Dr. Wm Thompson about localities in Mexico. Is bed at 2300.