May. 1921 Boulder Creek. May 6. (contin.) Greenbacked Goldfinch and Willow Goldfinch. May 7. Cloudy a.m. Worked at art school May 8. Cloudy. May 9. Cloudy morning. May 10. Sunny morning. May 11. Commencement Day. Warm- Sh. St. Hawks and Cooper Hawks seen. May 12. Robin singing freely in canyon at 4:15 a.m. Birds began singing at 3:45 a.m. Song sp. jist, then Buteo cat Warbler, Grosbeak, [illegible] Thrush (call, no song yet), San Fran. Towhee, Brown. May 13. Slipped Pale-oldest Warbler for Stewart's Adult male - full plumage. Flies against window. May 14. Went to Boulder Creek. Pleasant day- May 15. Cool, partly cloudy a.m. St. Horned Wool heard last night - Found during day - Krigfishes, Flycatcher, Olive-sided Flycatcher, W. Wood Pewee, Western Flycatcher, Calif. Jay, Coast Jay, Brewer Blackbird, Purple Finch, Green-b. Goldfinch, Bixi Siskin, Junco, Song Sp., Sp. Towhee, Calif. Towhee, Grobbed, Lazuli Bunting, Cliff Swallow, Warbling Vireo Lubricent Warbler, Yellow Warbler, Black-thr.