1943 June 1. Rained all night; dense cloud a.m. clearing p.m. June 2. Mrs. Reynolds took me to Dumbarton Bridge To see the Caspian Tern colony. As we approached the levee where they are nesting we could see the large white area and a few scouts came out to meet us. At the end of the better part of the road, on top of a levee, she parked the car and we ate lunch. I noticed a pair of Bryant Sparrows which seemed to be feeding young, Marsh Song Spar- ows, a few Barn Swallows and many Cliff Swallows (nesting under a small bridge). Occasionally a Caspian Tern flew over, squawk- wig at us. After lunch we walked on about half a mile to the roostery. More and more birds came to meet us and as we came near the nests the whole 1000 birds were in the air making a terrific noise. Dr. Miller, two weeks ago counted 431 nests. These nests were scattered about, several feet apart - no real nest, just a hollow which contained - some three eggs, some two eggs, some one egg. Some out- yg young bird and an egg, some two down- birds. Many eggs had rolled from the nest and young birds were wandering about. Some of the larger ones crouched between dried chunks of mud with their heads hidden. Many of the larger young took to the water and swam away - as far as 1/4 mile. As soon as Mrs. R. had her blinds placed I returned & the car and