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 68 THE CONDOR VOl,. X Spizella socialis arizome. Western Chipping Sparrow. Abundant everywhere and in full song. One was seen carrying nesting material, and old nests were fofind, which shows that they are summer residents. Passerella iliaca insularis(?) A Fox Sparrow was noted on April 21, 1905. It was feeding on the ground beneath a clump of bushes, and at intervals uttered a low warbling song, similar to the song of the Green-backed Goldfinch, but sweeter. It probably belonged to the form nsu[ars. Piprio maculatus cieraentre. San Clemente Towbee. Very abundant especially in the washes. Nine specimens, six males and three females were secured. Com- pared with specimens of Pipilo maculatus mealonyx in my collection, they have larger bills and are grayer dorsally, this latter 'condition being especially prom- inent in the females. Cyanospiza amcena. Lazuli Bunting. Seen occasionally in the canyons where water was present, but not very common. Lanius sp? About half a dozen shrikes were seen on the golf links back of Avalon. In 1905 three fully fledged juveniles being fed by their parents, were noted. The status of the Catalina shrike has not been determined. Helminthophila eelate sordida. Dusky Warbler. Dusky Warblers were very common in the canyons and in the qcrub oaks on the hillsides, where they were nesting. The hight of the breeding season must be the last of March, for many fully fledged juveniles and nestlings were seen by the middle of April. They were nesting in small scattered colonies, the nests usually being placed in scrub oaks from fifteen to twenty feet from the ground. Some nests however wer built in sumacs, and one was found in vines overhanging a gorge. They were quite bulky affairs, made of leaves, small twigs, grass and bark, lined with fine grass or sheep's wool. Dimensions of two nests are as follows: 1. Diameter--Outside, 3.50 inches; inside, 1.50 inches. Depth--Outside, 5.00 inches; inside, 2.25 inches. II. Diameter--Outside, 3.75 inches; inside, 2.00 inches. Depth--Outside, 3.00 inches; inside, 1.50 inches. Several clutches of four eggs were noted, besides quite a number of incomplete sets. The ground color of the eggs is ivory white, dotted and finely blotched with burnt sienna and pale lilac. The female is a very close sitter, almost allowing herself to be removed by the hand, and when driven from the nest feigns a broken wing, falling lightly to the ground, only to return and repeat the process, or utter scolding notes resembling "chit-chit." The male bird was always present with the female when the nest was being examined, but did not express so much anxiety as his mate. When the female was sitting he would hop about in the nearby trees, uttering at intervals his beautiful warbling song, "ti-ti-ti-ti-ti-ti-ti-ti-ch-ch-ch," beginning quite slowly and gradu- ally gaining in rapjdity. This, I must say, is a poor rendition of the song, as there is a certain ffietalic ring to it, which cannot be expressed in words. Dendroica auduboni. Audubon Warbler. Quite numerous in the washes. Minaus polyglottos leuopterus. Western Mockingbird. Abundant every- where and in full song. I was very much surprised to hear this bird give a perfect imitation of the cry of the Western Gull. Thryomanes bewicki harienturus. San Diego Wren. Abundant in the washes where many juveniles were observed, indicating that the breeding season is early in March. Hyloichla gutrata nana. Dwarf Hermit Thrush. A very few individuals of this species were seen in the brush tangles in the canyons. One was heard singing its exquisite song. ]>asadena, California.