Howell, T.R. 1949 S.v.daggetti 28 according to Mr. Archer, at Willow Creek Ranch. Crowder Flat, 5200 ft., 38 mi. NNW of Alturas, Modoc Co., Calif. May 31 (cont'd.) about low in the aspens, pines, and a juniper (mentioned before in connection with pr. #4). One would fly a few yards away and soon the other would follow and hitch toward the first, sometimes upside-down around a branch, sometimes around a trunk. Much squawking, I believe by both birds. It was hard to keep track, but I think both pursued the other at one time or another—not sure. A white-headed appeared close by and called—it was chased not very ferociously twice by one of the birds. Then they each flew off in different directions, the one I followed behind the Ranger station. Screams from the other direction, answered. The bird I was watching flew across the meadow then—8:30 A.M. 10:10 — At nest # 7. 10:11 d. at tree near nest—to another tree by nest— Sqwks— n. comes out, 10 yds away—back to nest tree, more sqwks. D. looks in several times, goes in, 10:13. N. is just above in a tree 2ft away, preens. 10:16—N. to nest, sqwks— I cannot tell from which or both—n. back to previous spot. 10:28 m. to