MacLean 1968 (7) Alphriza virgata (9 May) looks amazingly Buteo-like from below (until it flaps.). Left this bird and went to No. face of hill just SE of road. From a distance I could see and hear activity near the ground. I climbed the hill and watched a giant 1/2 hour fracas involving up to 4 birds simultaneously. The basic event was a very active chase involving 2 birds. This was not really a chase in the sense of 1 bird trying to catch the other, since first one and then the other bird would decoy. They would wheel actively around the area with 1 bird (which appeared to be slightly larger) giving the je-jew note or some variant of it, and the other bird giving a hoarse, higher pitched note. Upon landing one bird would approach the other in a forward posture with the scapulars raised. The other would either retreat in the same posture or take wing and the "chase" would be repeated. Occasionally a third bird would join in the ground activity, although flight involving 3 birds was always of short duration. Once, with two birds going at it below me a third bird flew purposively down from my left to join in. Immediately a fourth bird joined in from my right, so that 4 birds were involved. Most of what followed