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Sep., x9ox I THE CONDOR from the snow banks. At Horse Cor- ral Meadow, on the way out July at, I found the nest of a Thurber's junco. It was situated at the edge of the meadow, almost completely hidden in a clump of coarse grass. It was composed of coarse grasses, lined with finer grass, and short hairs from mule and burro, such as might fall along the trail from clipped manes. The nest contained three downy young. The trip covered some 6So miles of wagon travel and about 2oo with pack animals on moun- tain trails. TYPICAL NEST OF CASSIN VIREO. (From an enlargement of a photograph taken' by R. H. Beck.) ireo Traits. The above illustration typifies the nature of Cassin Vireo ( Vireo solilarius cassini) during its nesting season--, a confiding bird with a generous streak of curiosity running through its disposi- tion. In June x896 Mr. R. H. Beck found the nest represented in the illus- tration built in a black oak tree on the edge of a clearing, the nest being sus- pended only about three feet from the ground. The bird seemed not greatly disturbed by the setting up of the camera and a successful photograph resulted. Four eggs constitutes the usual set, although I have twice found five young in a nest and one set of five eggs ad- vanced in incubation. The nests are compactly woven and lined with light colored grasses, while the eggs are larger than those of either Vireo ?uttoni or Vireo gilvus. Cassin Vireo seems to possess but little fear of man and will approach very closely to the observer if he remaims motionless; when the nest is disturbed the birds will alternately utter a harsh note of remonstrance and then launch into song. The location of the nest here shown was Fyffe, E1 Do- rado Co., Cal. C. BARLOW.