1940 May 13. Final Trip of the "Allen Hammer" to Arroyo Muncha. Hot weather. The usual birds along the arroyo and at the Arroyo. The Bhanisopelas at the bot- tom of the Mt. Hamilton Grade. One pair was building a nest in a small fruit tree standing by itself in the field rising from the stream. Another pair was higher up the hill above the road. They were very conspicuous as they alighted on the top of a tree, on a fence or on the ground (collecting nesting material). There may have been more than two, pairs as one was seen near the bridge but this may have been one of the two pairs seen farther up. Western Kingbirds were common. Two that showed no white outer tail feather may have been Cassian Kingbirds. A pair of W. Great-ateaters had a nest at the end of a sycamore branch about 8 ft. from the ground. The birds took turns sitting on the nest, the female remaining 25-30 minutes and the male about five minutes. The male called often when sitting while the female was quiet. The nest cup was deep, 3-1/2 in. The nest was very closely felted and covered with lichens - color grey -