P. De Benedictis 1964 June 6. Colorado River, Parker Dam region, Calif. else it could have been (1st impression was Grey Hawk but the tail is wrong). About a minute later we saw a Pied-billed Falcon; the hawk was as big or bigger than the falcon. Found a Mourning dove sitting on what looked like an old Thrasher nest (the nest 2-3" thick & quite deep - never seen such a good dove nest before. But this is in open desert, from which the hawks came, but in sight of the desert. We went out from Vidal junction via Hwy 95 to Mecca & San Diego. Along 95 we stopped in the Thick Scrub but found only Doves, Sluekers, Vaquins & Black-tailed Gnatcatchers. No reptiles on the road and saw no mice until in Anza-Borrego Park. Saw a Racoon in the haymow lots. Raining in San Diego. Skinned the grackle, as it was beginning to get high. The dray appeared to have sev. large follicles, and there was an old blood patch. Can't see any signs of molt anywhere. Iris, bill, and legs dark. The bird appears to be an adult, post-feeding ?. Birds seen during these two days were: Eared Grebe 2; Pied-billed Grebe 8-10; Double- cormorant, 25-30; Great Blue Heron (30?) seen red with yg. along River). Green Heron - 1; Common Egret 38 +; Snowy Egret (10?), Night Heron - 2; White-faced Ibis 4, Fulvous Tree Duck 2; Mallard - 25; Pintail, 3-4; Cinnamon Teal - 8-10; Amer. Widgeon 2; Redhead 8-10,