According to Dr. Cooper, this Grosbeak arrives in California, near San Diego, about April 12. It is numerous during the summer throughout the mountains both of the coast and of the Sierra Nevada, and extends its migrations at least as far as Puget Sound. It is often kept in confinement on account of its loud, sweet song. In the Coast Mountains, in May, its music is said to be delightful, the males vying with each other from the tops of the trees, and making the hills fairly ring with their melody. Dr. Cooper found a nest of this bird, May 12, at the eastern base of the Coast Range. It was built in a low horizontal branch of an alder, and consisted of a few sticks and weeds, very loosely put together, with a lining of grass and roots. The eggs, three in number, he describes as of a pale bluish-white ground, thickly spotted with brown, more densely near the larger end. Their size he gives as .95 by .70 of an inch. Dr. Cooper also states that they frequent the ground in search of food, but also live much on trees, feeding on their buds. They are not gregarious, assembling only in family groups in the fall. They do not fly high, nor do they make any noise in flying. He has observed these birds at Santa Cruz April 12, or as early as he saw them at San Diego, three hundred and fifty miles farther south, and has found a young bird fledged as early as May 23. Dr. Coues speaks of this bird as an abundant summer resident of Arizona, where it arrives by the first of May, and remains until the latter part of September. He speaks of it as frequenting the thick brush of the ravines and the cottonwood and willow copses of the river-bottoms. Its call-note resembles that of _Lophortyx gambeli_. Its song, he says, is superb,—a powerful, but melodious succession of clear, rich, rolling notes, reminding one somewhat of the _Icterus baltimore_. Dr. Suckley speaks of this bird being sparingly found in the vicinity of Fort Steilacoom, Puget Sound, where he obtained two specimens. Dr. Heermann speaks of the song of this bird as clear and musical, and as very closely resembling that of our _Turdus migratorius_. He describes its nests as formed with very little care, of twigs loosely thrown together, and lined with roots, placed in the branches of bushes. The eggs, four in number, he describes as of a greenish-blue ground, marked with irregular spots of umber-brown, varying in intensity of shade.