Banks 1954 2 ostrichia leucophrys 7. May 1 2.2mi NW Bolinas, 300 ft, Marin Co., Calf. About 5 pm. returned and shot the & who sultred in the same bush in exactly the same way - I am sure it was the same bird. Both in breeding condition. The ? of this pair sat up high on fence + gave alarm notes; the ? hid in the bushes - exactly reversed from the usual situation. Bird 10 (RB34/10) was one of two which flushed from a low sage. The other flew 20 yds or so to another bush, then ? birds left that bush + flew on. As I chased them, they were joined by others until soon there were 4 together. One of these I obtained, no. 11 (RB34/11) but don't know its relation to 10. No. 11 was a ?, but its abdomen was featherless and gave the appearance of a brood patch - thick-skinned, etc. - almost like a ?. It had a clavical protuberance; brood patch not as extensive as on a ?. No. 12, got later in same area as 11, is a ?, it was with another bird. No. 9, (RB34/13) flushed from a Baccharis. No. 15, which I chased back & forth in some willows near a stream, was a ? w/ brood patch and an over 2" m. indian, others smaller. Oviduct large but empty. Bird 16 which I got directly across the road from 15 + a few minutes later had on 11mm. eggs in its oviduct and 3 ruptured follicles. This is a brown-hooded bird