1943. July 9. Life Sciences Bldg. Cliff Swallows still feeding young. Nests most num. on S.E. corner (or south side). At N.E. corner nests only in recesses near edges of lower like corners. July 18. (Saturday). We returned to Boulder Creek (drove our auto). At Dumbarton Bridge: Birds very much more numerous than on July 5, Tide out. East end: Willets 200+; Least Sandpipers 100+; W. Sdp. 100+; N. Phalaropes 200+; Avocets - a pair chased a St. Blue Heron when he flew near their well-grown young. (In tide line: Many Avocets and Willets. West end: - Lg. killies Curled 30-40. No gulls, a few Foster Terns, Cliff Swallows decreasing. July 12. I took a group of Boy Scouts out to look at birds. No glasses used. I had them stand still and listen and then tell me where a bird was singing. Then I told them what it was and some interesting things about it. One boy had learned some of the birds before and he kept a list in two columns - Birds Seen - Birds Heard. Did not leave our place. When we had finished I brought them to the cottage and showed them the pictures of the birds on our list. Birds heard, then seen: Brown Towhee (male, singing), Spotted Towhees, just only, (both on our table) - Cairy Woodpecker (seen only), Hutton Vireo, Chickadee, Birds heard, not seen: W.W. Warbler (singing near river), W. Flycatcher, Illivic-sided Flycatcher, Pied-billed Warbler, Rob. Thrush, Junco. (white-tipped) P.M. Pair of Sp. Towhees on table - one with only 2 tail feathers