1920 June - Boulder Creek. alive. Tried nest in place and waited till 3:30 P.M. but mother did not return. Allen N. at Johnson cottage just beginning to sit. Removed her 2 eggs, put two baby birds in their place at 3:40 P.M. Bird returned almost immediately after, scratched young into proper position fed and brooded till 4 P.M. when I left her to her new duties. June 11. At 9 A.M. visited Hummers' nest. Found mother bird busily feeding her adopted babies. Returned to nest twice in 15 minutes. Watched her feed four times by regurgitation at second visit to the nest. She then settled herself on the nest to brood. June 12, 13. Mother A. Hummer still feeding the adopted babies. June 12. Walked up Bear Creek Wood Road. Heard W. Winter Wren - June 14. Brown Black Phoebes with parent birds. Rain - June 15. Walked up San Lorenzo River. Found pair of Violet Green Swallows at Concrete bridge. In concrete support are drainage holes. One of the swallow