According to Wilson, this bird is not noticed in Pennsylvania much, if any, earlier than its first appearance in New England, and it leaves at about the same time. He observed it in great abundance both in South Carolina and Georgia. In manners it is active and sprightly, and its song is vigorous and pleasant. It is considered a better singer than either the _ciris_ or the _amœna_. It usually stations itself, in singing, on some high position, the top of a tree or of a chimney, where it chants its peculiar and charming song for quite a space of time. Its song consists of a repetition of short notes, at first loud and rapid, but gradually less frequent, and becoming less and less distinct. It sings with equal animation both in May and July, and its song may be occasionally heard even into August, and not less during the noonday heat of summer than in the cool of the morning. Nuttall describes its animated song as a lively strain, composed of a repetition of short notes. The most common of its vocal expressions sounds like _tshe-tshe-tshe_, repeated several times. While the female is engaged in the cares of incubation, or just as the brood has appeared, the song of the male is said to be much shortened. In the village of Cambridge, Nuttall observed one of this species regularly chanting its song from the point of a forked lightning-rod, on a very tall house. The Indigo Bird usually builds its nest in the centre of a low thick bush. The first nest I ever met with was built in a thick sumach that had grown up at the bottom of a deep excavation, some fifteen feet below the surface, and but two feet above the base of the shrub. This same nest was occupied five successive summers. It was almost wholly built of matting that the birds had evidently taken from the ties of our grapevines. Each year the nest was repaired with the same material. Once only they had two broods in one season. The second brood was not hatched out until September, and the family was not ready to migrate until after nearly all its kindred had assembled and gone. This nest, though principally made of bare matting, was very neatly and thoroughly lined with hair. Other nests are made of coarse grasses and sedges, and all are usually lined in a similar manner. Audubon and Wilson describe the eggs of this bird as blue, with purplish spots at the larger end. All that I have ever seen are white, with a slight tinge of greenish or blue, and unspotted. I have never been able to meet with a spotted egg of this bird, the identification of which was beyond suspicion. They are of a rounded-oval shape, one side is only a little more pointed than the other. They measure .75 of an inch in length by .58 in breadth. They resemble the eggs of _C. amœna_, but are smaller, and are not so deeply tinged with blue. Cyanospiza amœna, BAIRD. LAZULI FINCH.