This species, while in the United States, never enters the woods, but prefers either the barreny portions of our elevated table-lands, or the vicinity of the sea, lakes, or rivers, where much loose sand, intermixed with small clumps of bushes and grasses, is to be found. To such places I have thought that the Snow Birds endeavour to return each successive winter, unless compelled by the weather to proceed still farther south. I have seen them on the borders of Lake Erie, and on some of the barrens of Kentucky, for several successive seasons in the same neighbourhood. At Louisville I saw a flock each winter, on a piece of open ground between that city and the village of Shippingport, when their movements seldom extended beyond a space half a mile in diameter. It was there that one morning I caught several which were covered with hoarfrost, and so benumbed, that they were unable to fly. At that season, they kept company with the Shore-larks, the Lark-finches, and several species of Sparrow. They frequently alighted on trees, particularly the sweet gum, of which they eat the seeds.
The flight of this bird has a considerable resemblance to that of the Shore-lark, being rapid, elevated, and greatly protracted. It glides, as it were, through the air, in long and easy undulations, repeating a soft whistling call-note at each of these curves. While on the ground they run nimbly, and if wounded make off with great celerity, hiding in the grass, where it is difficult to find them, as they lie close and silent until danger is over.
When they first arrive, they are usually gentle and easily approached; but as their flesh is savoury, and their appearance attractive, they are shot in immense numbers, so that they soon become shy and wary. During moderate weather, they become more careless, appear to stray farther from each other, and if by the middle of the day the sun shines out warm, the male birds sing a few plaintive but soft and agreeable notes.
Only a single nest of this bird has been found within the limits of the United States. It was seen by Wright Booth, Esq. of Boston, on a declivity of the White Mountains of New Hampshire, in the month of July 1831. That gentleman described it to me as being fixed on the ground amid low bushes, and formed like that of the Song Sparrow. It contained young ones.
Whilst with us, these birds are found in all varieties of plumage, excepting the pure white and black, which form their summer dress. I have not seen any having these colours, even among those procured late in March when they usually leave the United States. In Labrador and Newfoundland, they are known by the name of the "White Bird." Their food there consists of grass seeds, insects of various kinds, and minute testaceous mollusca. They not unfrequently alight on the wild oats growing on the borders of lakes and ponds, to feed on its seeds, and with all these substances they mix a proportion of fine sand or gravel.
Emberiza nivalis, Linn. Syst. Nat. vol. i. p. 308.—Ch. Bonaparte, Synops. of Birds of the United States, p. 103.
Emberiza (plectrophanes) nivalis, Snow Buntling, Swains. and Richards. Fauna Boreal.-Amer. vol. ii. p. 247.
Snow Bunting, Emberiza nivalis, Wils. Amer. Ornith. vol. iii. p. 86. pl. 21. fig. 2.
Adult in winter. Plate CLXXXIX. Fig. 1, 2.
Bill short, robust, tapering, somewhat compressed; upper mandible slightly convex in its dorsal line, the sides rounded, the sharp edges inflected; the palate with a convex prominence; lower mandible broader, with involute sharp edges; the gap-line deflected at the base. Nostrils basal, rounded, open, partly concealed by the feathers. The general form is rather robust. Feet of ordinary length; tarsus compressed, anteriorly covered with a few long scutella, sharp behind; toes scutellate above, granulate beneath, compressed, lateral toes equal; claws slightly arched, compressed, rather obtuse, with a short deep groove on each side at the base, the hind claw much longer.