March 1923 Berkeley. Mar. 27. Caught lone canary - Heard House Wren. Went with Mrs. Saunders Children to Pleasanton-Sanol in search of Blue Heron colony. Found theirs N. of Hearst Estate. 4 nests in our bite - 5 in other. Birds on nests and flying about. Saw also Kingfisher, Black Phoebe, Willow Woodpeckers Swallows (building under eaves at Danville) Morning Doves, Shrike, Dic. Sparrows, Audubon Warblers, Varied Thrushes. Three (large) dark birds cleaning thru' trees giving note like that of W. Martin - Black Phoebe building. Blue Herons seemed to be brooding. Nests very high in tops of sycamore trees. Mar. 28. Heard a Warbling Vireo singing near the U.C. dairy. Warm. Mar. 29. Fog in morning. Townsend Warblers singing. James reported Great Horned Owls in the night. One was on the sleeping porch, the other farther away. Luscinia Warblers at the pool. Singing freely. March 30. Cooler. Heard R.C. Kinglet. June 51981 Showers in night. March 31. Banded Fox Sp. 55037, Br. Towhee 56038. White Throated Sparrow (banded) seen again after two weeks absence. Did not succeed in trapping it.