Autumnal and winter males have the feathers generally, especially on the back and breast, tipped with light brown, obscuring somewhat the blue, though producing a beautiful appearance.
Habits. The Blue Grosbeak, though more a bird of the Southern States, is also one both of an extended and of an irregular distribution. It was even met with one year in the vicinity of Calais, Me., although none have been known to occur in any part of the country between that point and New York City. It is found from the Atlantic to the Pacific coast.
The extent to which it is distributed throughout California is inferred, rather than known. Dr. Cooper noticed one at Fort Mohave, May 6, and afterwards saw many more frequenting the trees and bushes along the river, and singing a lively song, which he compares with that of the Carpodacus frontalis. He also saw them at Los Angeles and at Santa Barbara, and states that they were found at Pit River, in the extreme northeastern part of the State, by Dr. Newberry. They were observed to frequent the banks of streams crossing the great interior plains and deserts, where there was little vegetation except a few bushes.
The Blue Grosbeak was only met with by Mr. Ridgway and his party at Sacramento. It does not occur—or, if so, it was not seen—in the interior so far to the north as the route of Mr. King’s survey. At Sacramento it was found frequenting the same localities as the Cyanospiza amæna, and appeared to be characteristic of the cottonwood copses. Their nests were found between the 18th and the 29th of June, and were all in similar situations. These were built in small cottonwood-trees, on the edge of the copse, and were all about six feet from the ground.
Mr. John Burroughs, in one of his charming popular essays[10] on the general habits of our birds, refers to their occasional preference, in sites for their nests, of the borders of frequented roadsides, and mentions finding a nest of the Blue Grosbeak among the trees that line one of the main streets and fashionable drives leading out of Washington City, less than half a mile from the boundary. There, he states, this bird, which, according to Audubon’s observations, is shy and recluse, affecting remote marshes and the borders of large ponds of stagnant water, had placed its nest in the lowest twig
of the lowest branch of a large sycamore immediately over a great thoroughfare, and so near the ground that a person standing in a cart or sitting on a horse could have reached it with his hand. The nest was composed mainly of fragments of newspaper and stalks of grass, and though so low, was remarkably well concealed by one of the peculiar clusters of twigs and leaves which characterize this tree. The nest contained young when he discovered it, and though the parent birds were much annoyed by his loitering about beneath the tree, they paid but little attention to the stream of vehicles that was constantly passing. It was a source of wonder to him when the birds could have built it, as they are so much shyer when building than at other times. They must have worked mostly in the early morning, when they could have the place all to themselves. The same observer also noticed another pair of Blue Grosbeaks that had built their nest in a graveyard within the city limits. This was placed in a low bush, and the male continued to sing at intervals till the young were ready to fly. The song of this bird he describes as a rapid, intricate warble, like that of the Indigo Bird, though stronger and louder. Indeed, these two birds so much resemble each other in color, form, voice, manner, and general habits, that, were it not for the difference in size,—the Grosbeak being nearly as large again as the Indigo Bird,—he thinks it would be a hard matter to tell them apart. The females of both birds are clad in the same reddish-brown suits, as are also the young during the first season.
The nest of this species has also been found built in a tree within the grounds of the Smithsonian Institution, Washington.
The only time I ever met with this species was at Carlisle, Penn., in June, 1843. The previous month Professor Baird had found its nest in a low tree, in open ground, and we found these birds still frequenting the same grounds, where we found another nest containing three eggs. It was in a low thorn-tree on the edge of a wood, but standing out in open ground. The nest was about five feet from the ground.
The Smithsonian specimens are from Carlisle, Penn., obtained in April, May, and August; from Georgia, Texas, New Mexico, Nebraska, Mexico, etc. Mr. Lawrence enumerates this among the birds found near New York City. Mr. Dresser found it common near Matamoras in July and August. It was breeding there, though, owing to the lateness of the season, he was unable to procure any of its eggs. Dr. Coues speaks of it as generally distributed in Arizona, but nowhere very common. A single specimen was taken near Fort Whipple, August 10. Turnbull regarded it as a rare straggler to the southern counties of Pennsylvania and New Jersey, arriving there in the middle of May. Dr. Woodhouse found it common in the Indian Territory and Texas. Lieutenant Couch mentions seeing this bird first near Monterey, the male always preceding the female. He speaks of them as exceedingly tame. Mr. J. H. Clark states that this bird was not often seen, and, when observed, was generally solitary, preferring the dark ravines and the cañons
on the mountain-sides. It is not mentioned by Sumichrast as a bird of Vera Cruz, but was found during the winter months at Oaxaca, Mexico, by Mr. Boucard.