Mayhew 1947 May 19 Western Robin 10. U.C. campus, Alameda Co., Calif. It moved its head from side to side occasionally. At 2:15 P.M. it began to preen its feathers, while remaining on the nest. There is no evidence of the other adult anywhere around. At 2:19 P.M. a Song Sparrow landed on a branch of the tree about 10 feet from the nest, sang his song though once, and departed without arousing the bird on the nest at all. At 2:23 P.M. the bird left the nest & flew north to the branch of a small oak tree about 60 feet from the nest. It then hopped down to the ground, where it began to look for worms. At this time I was able to see that it was the ♀. I was also able to see that its left leg had been injured at some time so that it had to hop about. At 2:26 P.M. it flew on farther north across Oxford Circle & out of my sight. At 2:29 P.M. the same bird returned to the nest, and after standing on the west edge of the nest trying to swallow something I couldn't make out, she settled on the nest again facing east. She continued to struggle with the object in her mouth until she succeeded in swallowing it. At 2:34 P.M. two white-crowned