7 Feb 28. Santa Ana Wildlife Refuge along the river 4:40 - 5:10 pm I saw 1 Black Vulture in a flock of 100 + Turkey Vultures (100 actually counted) They were soaring into a wind from the SE. In thickets, I encountered only Texas Sparrow and Bl-crested Titmouse. Mch 1 at sunrise (7:00 am) I noted large number of bats flying over residence and among trees, probably feeding on the mosquitoes which abound in area. Other mammals noted: cottontail; coyotes heard. Additional birds: Audubon Oriole 4 ( Bewick Wren?) song White eyed Vireo (singing) White - fronted Pigeon American Goldfinch Marsh Hawk I left the refuge at 5:30 pm and drove to Alamo, McAllen and Mission where I spent the night. The following morning I drove W on highway 83 through Sullivan city toward Rio Grande City.