The song of this Grosbeak is diversified, pleasant, and mellow, delivered with energy and ease, and renewed incessantly until its frequent repetitions somewhat diminish its charms. Its peculiar whistle is not only loud and clear, resembling the finest notes of the flageolet, but is so sweet and so varied that by some writers it has been considered equal even to the notes of the far-famed Nightingale of Europe. It is, however, very far from being among our best singers; yet, as it is known to remain in full song more than two thirds of the year, and while thus musical to be constant and liberal in the utterance of its sweet notes, it is entitled to a conspicuous place among our singing birds.
In its cage life the Cardinal soon becomes contented and tame, and will live many years in confinement. Wilson mentions one instance in which a Redbird was kept twenty-one years. They sing nearly throughout the year, or from January to October. In the extreme Southern States they are more or less resident, and some may be found all the year round. There is another remarkable peculiarity in this species, and one very rarely to be met with among birds, which is that the female Cardinal Grosbeak is an excellent singer, and her notes are very nearly as sweet and as good as those of her mate.
This species has been traced as far to the west in its distribution as the base of the Rocky Mountains, and into Mexico at the southwest. In Mexico it is also replaced by a very closely allied variety, and at Cape St. Lucas by still another. It is given by Mr. Lawrence among the birds occurring near New York City. He has occasionally met with it in New Jersey and at Staten Island, and, in one instance, on New York Island, when his attention was attracted to it by the loudness of its song.
It is given by Mr. Dresser as common throughout the whole of Texas during the summer, and almost throughout the year, excepting only where the P. sinuata is found. At Matamoras it was very common, and may be seen caged in almost every Mexican hut. He found it breeding in great abundance about San Antonio in April and May.
Mr. Cassin states that the Cardinal Bird is also known by the name of Virginia Nightingale. He adds that it inhabits, for the greater part, low and damp woods in which there is a profuse undergrowth of bushes, and is particularly partial to the vicinity of watercourses. The male bird is rather shy and careful of exposing himself.
Wilson mentions that in the lower parts of the Southern States, in the neighborhood of settlements, he found them more numerous than elsewhere. Their clear and lively notes, even in the months of January and February, were, at that season, almost the only music. Along the roadsides and fences he found them hovering in small groups, associated with Snowbirds and various kinds of Sparrows. Even in Pennsylvania they frequent the borders of creeks and rivulets during the whole year, in sheltered hollows, covered with holly, laurel, and other evergreens. They are very fond of Indian corn, a grain that is their favorite food. They are also said to feed on various kinds of fruit.
The males of this species, during the breeding season, are described as very pugnacious, and when confined together in the same cage they fight violently. The male bird has even been known to destroy its mate. In Florida Mr. Audubon found these birds mated by the 8th of February. The nest is built in bushes, among briers, or in low trees, and in various situations, the middle of a field, near a fence, or in the interior of a thicket, and usually not far from running water. It has even been placed in the garden close to the planter’s house. It is loosely built of dry leaves and twigs, with a large proportion of dry grasses and strips of the bark of grapevines. Within, it is finished and lined with finer stems of grasses wrought into a circular form. There are usually two, and in the more Southern States three, broods in a season.
Mr. Audubon adds that they are easily raised from the nest, and have been known to breed in confinement.
The eggs of this species are of an oblong-oval shape, with but little difference at either end. Their ground-color appears to be white, but is generally so thickly marked with spots of ashy-brown and faint lavender tints as to
permit but little of its ground to be seen. The eggs vary greatly in size, ranging from 1.10 inches to .98 of an inch in length, and from .80 to .78 in breadth.