1930 Mar.23. A little east wind drove every cloud away and left a brilliantly clear sky. Lunch out of doors. Mar.24 - Clear and very warm - over 80° at 2 p.m. Thrushes, thrushes, juncos, song sparrows, thrasher, Vegeta's orioles, purple finches singing frequently - Lutescent warbler all the time as if female were sitting. At 2:50 p.m. as I was sitting near the S.W. window in the living room I saw a Hutton Vireo pulling at a twig in the live oak at that corner of the house. A little later it returned to the same twig. With my opera glasses I could see a little bunch of cobwebs on the twig. After that the pair came several times and it was apparent that they were just beginning a nest. [illegible] Mar.25. Warm summers weather. Saw the Hutton Vireos several times through the day. They are unhurried, come only at long intervals to the site and are only occasionally heard calling near the house. Mar.26. A House Wren was singing enthusiastically under my window soon after dawn. Watched the nest site of the Hutton Vireo continuously from 9 - 10:15 a.m. but birds did not come. Saw them at 10:55 - upper rim of nest taking shape. I was away after 11 a.m. but had one look about 4 p.m. The webs had been drawn across from rim to rim, its down the skeleton of the bottom - more strands of grass were visible than heretofore. Very hot. Mar.27. East wind - a few clouds - cooler in morning. Hot, clear p.m. Started to Saratoga at 2 p.m. Blossoms in Santa Clara Valley - A Western Tanfieldcatcher came into garden very beautiful. Hutton Vireos were not seen at the nest during the morning but came in afternoon just before we left.