Specimens from the whole of Mexico, including even the west coast, are referrible to varius; they are probably winter migrants from the eastern United States.
A female, from Washington, D. C. (No. 12,260, C. Drexler), has the lower half of the throat much mixed with red, as in var. nuchalis; but there is no trace of this color on the nape. A male from Carlisle (No. 12,071, W. M. Baird) has the nape distinctly tinged with red, as in nuchalis, but the black malar stripe is uninterrupted. Similar specimens have been taken in New England, by Messrs. Brewster and Henshaw.
Many females occur with the entire pileum glossy-black, there being no trace of red, though there are sometimes specks of white.
Habits. The Yellow-bellied Woodpecker is found throughout the United States, from the Gulf of Mexico on the south and the Atlantic on the east to the Rocky Mountains, and is met with as far to the north as the 61st parallel of latitude. Sir John Richardson found it common in the fur countries, being the only Woodpecker that visits those regions in flocks. He observed the Yellow-bellied Woodpecker on the north shore of Lake Huron on the 14th of April, in 1825, and in 1827 it made its first appearance for the season, on the plains of the Saskatchewan, on the 14th of May. Swainson received specimens of this Woodpecker from Mexico. De la Sagra and Dr. Gundlach both give it in their list of Cuban birds, though not as breeding on that island. Gosse obtained several specimens in the months of December, January, and February, in Jamaica, where he regarded it as only a winter migrant from the northern continent. It is not given by the Newtons among the birds of St. Croix, but appears in Sclater’s list of the birds of Central America, on the authority of Mr. George M. Skinner. Two specimens have been taken in Greenland.
Wilson, in his account of its breeding habits, speaks of it as a resident bird from Cayenne to Hudson’s Bay, as being common in the States of Kentucky and Ohio, and as having been found in the neighborhood of St. Louis. He describes the habits of this species as similar to those of the Hairy and Downy Woodpeckers, with which it generally associates. The only nest of this bird which Wilson ever met with was in the body of an old pear-tree, about ten or eleven feet from the ground. The hole was almost exactly circular, small for the size of the bird, so that it crept in and out with difficulty; but the excavation suddenly widened, descending by a small angle, and then running downward about fifteen inches. On the smooth solid wood lay four white eggs. This was about the 25th of May.
Mr. Audubon, on the other hand, speaks of this species as returning to Louisiana and the other Southern States only about the beginning of October, remaining there during the winter, and again taking its departure before
the beginning of April, after which period he never observed it in those districts. A few only, according to the same authority, breed in Kentucky, but the greater number migrate to the more northern parts of the Union. He describes it, in its habits, as preferring the interior of the forest during the spring and summer, seldom showing itself near the habitation of man at those seasons. It generally, he adds, bores its nest at a considerable height, and usually in the trunk of an undecayed tree, immediately beneath a large branch, and on its southern side. The hole is worked out by the male as well as the female, in the manner followed by the other species, and to the depth of from fifteen to twenty-four inches. The aperture is just large enough to admit the birds, but the whole widens gradually towards the bottom, where it is large and roomy. The eggs, which are from four to six, and pure white, with a slight blush, are deposited on the chips without any nest. The young seldom leave the hole until they are fully fledged.
Mr. Audubon elsewhere speaks of having found this species extremely abundant in the upper parts of the State of Maine and in the Provinces of Nova Scotia and New Brunswick; but he saw none in Newfoundland or Labrador.
For my specimens of the eggs of this species and valuable information as to its habits, I am indebted to Mr. Charles S. Paine, of East Bethel, Vt., in which State it seems to be quite abundant. In a letter written in the summer of 1860, he furnishes the results of his observations relative to their habits, so far as they have fallen under his notice.
The Yellow-bellied Woodpeckers reach the central and northern parts of that State about the 10th of April. They soon make their presence known there by their loud and continued drumming, rather than tapping, on the trunks and larger branches of decaying trees. Of this drumming they seem to be peculiarly fond, especially where they can produce a loud ringing sound. Sometimes, when Mr. Paine had been engaged in the process of preparing maple sugar, he had left a few empty wooden buckets hanging on the branches of trees, until needed for use. Upon these the bird will drum, apparently with the greatest delight. At times they would experiment upon the tin pails, but, being unable to obtain good standing-ground, they did not follow it up. On such occasions their drumming did not appear to be done in the pursuit of worms or food, but was very evidently for their own entertainment, or in a spirit of rivalry one with another, as if seeking to please their mates. When two male birds meet, they pursue each other through the woods with great clamor. They have a loud, distinct, and lively note, but their favorite music appears to be this drumming. They mate and commence the excavation of their nests the last week in April. Their eggs are usually deposited, in this section, somewhere between the 20th of May and the first of June. The excavations for their nests are usually made in the tops of large decaying trees. He adds that he found four or five of these nests that year. The eggs of one of these he was able to obtain without