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 Jan.,1914 SECOND LIST OF BIRDS OF THE BERKELEY CAMPUS 37 CAS$IN VIREO. I,auivireo solitarius cassini. Rare summer visitant. In June, 1.9o9, a pair was evidently nesting along Strawberry Creek near the Faculty Club. The'male was in full song, and was closely 'observed on several occasions. 14m"roN VIREO. Vireo hutoni hutoni. Common resident of the live-oaks up Woolsey and Strawberry Creek canyons. Occasional pairs occur among the oaks on the lower Campus. The peculiar nuptial song is heard as early as Feb- ruary 15 . ,CALAVERA$ WARBLER. Vemivora ruficapilla gutturalis. Rare transient. Two were closely observed as they foraged through the foliage of bay trees and willows in the head of a ravine near Grizzly Peak, September 15, i912 (J. G.). LuEsc;N WARBLER. Vennivora eelata lute.qeen.q. Common summer vis- itant. Arrives early: March 21, 19o6 (A. S. A.); March i9, i9ii, and March i5, i912 (T. I. S.); March 5, 1913 (14. C. B.). Remains well into September; latest date, September 25, I908 (J. G.). A forager chiefly m the foliage of live- oaks both among the hills and down on the Campus proper; but nests are located exclusively along creek-banks. A nest found June I2, i913, Was ensconced in a cavity of the ground among dead leaves and vines on the' wall of the creek within ten feet of the foot-bridge near the Center Street entrance. There were three fresh eggs at this date (J. G.). CALIFORNL YELLOW W.,RBLER. Dendroica aestiva brewsteri. Common summer visitant. Dates of arrival: April 21, 19.[1 (A. S. A.); April 12, 1912 , and April I, I9I 3 (T. I. S.): Remains regularly until the middle of September, at which time small companies affect the tree-tops, "chipping" loudly, especially towards sunset. Late dates: September 25, 19o8, and September i7, i9IO (J. G.). This warbler is partial to decidnous foliage, and its shrill song may often be heard from the elm-trees which line many of Berkeley's streets. ALASKA MYRTL WARBLER. Dendroica coronata hooveri. In all probability occurs as a regular winter visitant; but in winter plumage it is so similar to the Audubon Warbler, that the two species are doubtless often confounded. But after the spring molt sets in, sharp distinctions in coloration become apparent. Myrtle Warblers have been seen in numbers in April, foraging in the new foliage of live-oaks arouhd the Museum building. Exact dates were: April 13, 14 and I5, 1912 (J. G. and T. I. S.); March 30 and April 21, 1913 (J. G.). ALmUBON W-RLBER. Dendroica auduboni auduboni. Abundant winter visit- ant, affecting all sorts of trees, chaparral, and even garden shrubbery. Frequently observed fly-catching about the windows and cornices of buildings in the heart of town. Dates of first observation in the fall: October I9, 19o4, October I5, 19o6, and October 6, I90 7 (A. S. A.); October 8, I9O8, and October 9, I9I (J. G.); October 24, 1911, and September 3 , I912 (14. C. B.); September 23, I9I 3 (T. I. S.). Latest date of observation in the spring, April I5, I912 (j. C.). BLACK-Tt'lloTED GRAY VARnLER. ])endroiea nigreeen. Rare transient. Seen repeatediy in the oaks below Mosswood Road in September. i912. First seen September I5, and small flocks remained in the vicinity for several days thereafter (A. S. A.). TowsEm) WARBLER. ])endroiea town.qendi. Fairly common winter visitant, occurring as a tree-foliage forager, with predilections for live-oaks and conifers. Dates of arrival in the fall: October 2, 19o 4, October lO, 19o6, September 29 , 19o 7, and October i, 1912 (A. S. A.); October 3, 1913 (M. W. W.). Dates of !leparture, as indicated by last seen: March 3 o, I9II, April i2, I912 , and March 3 o, 1913 (J. G.).