Mayhew 1947 May 21 Western Robin U.C. campus, Alameda Co., Calif. younger. She then settled down on the nest facing north-east. at 6:40 P.M. She stood up in the nest + began probing around in the bottom of the nest with her bill. This continued until 6:43P.M. when she again settled down on the nest. The temperature has dropped still more since the sun has gone down + the fog has formed a complete blanket. At 6:48 P.M. a Brown Towhee landed directly beneath the tree, but called no response in the bird on the nest. Apparently she is on the nest for the night; because it is now 7:00 P.M. + she shows no signs of leaving the nest, May 22 On my arrival at the nest in the Desdora tree at 2:44 P.M., I found the ♀ sitting on the nest, facing west. The weather is bright, but a cool wind is blowing from the north-west. As yet, the ♀ is nowhere in sight. At 2:50 P.M. the ♀ stood up in the nest + shifted her position somewhat. When she settled back on the nest, she rolled her body slightly from side to side as though she were moving the eggs under her. When she finally settled down, she was still facing west. At 2:55 P.M. the ♀ left the nest + flw south-west. At 2:58 P.M. a Brown Towhee began feeding directly below the nest. At 2:59 P.M. the ♀ Robin returned