_Fall._--Theed Pearse tells me that he has seen Townsend's warblers on migration through Vancouver Island, British Columbia, as early as August 13 and as late as October 9, but gives no winter records. Rathburn gives me two winter records for the vicinity of Seattle, Wash.; D. E. Brown took two males on January 9, 1921, and saw "a number of others"; and a week later he collected a female. These were doubtless, winter casuals, as the summer residents and transients pass through Oregon in October or earlier. Mrs. Allen writes to me from Berkeley, Calif.: "The Townsend Warbler is an abundant fall and spring migrant and a common winter visitant. In Berkeley the average date of arrival in the fall is September 28 (18 records), the earliest August 27, 1931. They are most abundant during October, after which they are reduced to winter numbers." Henshaw (1875) writes: At Mount Graham, Ariz., in September, this warbler was found in considerable numbers, though the few taken were procured with no little difficulty, for they almost invariably were seen in the tops of the tallest trees, where a glimpse might now and then be had of them as they dashed out after flying insects, or flew from tree to tree in their always onward migratory course. The tracts of pine woods they shunned entirely, but affected the firs and spruces, and their flights from point to point were regulated and made longer and shorter by the presence or absence of these trees. Their movements were exceedingly rapid; a moment spent in passing in and out the interlacing branches, a few hurried sweeps at their extremities, and they were off to the next adjoining tree to repeat the process again and again till lost sight of in the dense woods. _Winter._--A few straggling Townsend's warblers spend the winter occasionally as far north as Oregon and Washington; the species is fairly common from central California southward; but the main body of the species retires to Mexico and Central America. Mrs. Allen tells me that they are quite abundant in the redwood trees of California in winter; and in midwinter, she has "many records of their coming under the eaves of the house, where they seem to be taking spiders."