The Teal — Nettion Crecca (Linnæus)
This is the smallest of our native species of Duck, and is fairly common throughout our islands at all times of the year, but its numbers are largely augmented in winter by the arrival of vast flocks from abroad. It may be found in winter near the mouths of rivers and shallow estuaries as well as inland; its food consists of grain, insects, worms, slugs, and molluscs.
It breeds throughout our islands, but more abundantly in the north. The nest is generally placed at some distance from water on a dry moorland or rough grass-field, and this species makes a rough nest of leaves and grass, lined with down. The eggs, eight to ten in number, are creamy white.
The male has the crown, nape, cheeks, and throat chestnut; an elongated patch of purplish green behind the eye, the rest of the upper parts vermiculated with black and white except the rump and tail coverts, which are black. Under parts white, the lower part of the neck and breast being spotted and sometimes of a yellowish tinge; flanks vermiculated with black. Speculum green and purplish black. Bill black, legs brownish grey. The female is mottled with brown and buff. The young resemble the female. The male in his eclipse dress, which is worn till late in October or November, resembles the female very closely, more so in fact than is the case with any other species. Length 14·5; wing 7·25 in.