The FIELD WOODPECKER (_Geocolaptes campestris_) is an inhabitant of the South American prairies, and represents a group that, unlike those already described, seek their principal food, not upon the trunks of trees, but from the surface of the ground. The Field Woodpecker possesses a slightly-curved bill, of about the same length as the head; its wings are long, pointed, and powerful, their fourth quill longer than the rest; the strong tail is pointed, and the slender foot furnished with very delicate toes. The variegated plumage is not very brightly tinted; the crown of the head and neck are black; the cheeks, throat, and upper breast golden yellow; the back and wings pale yellow, striped with blackish brown; the lower portion of the back, the breast, and belly are whitish yellow, each feather having black markings; the quills are greyish brown, with gold-coloured shafts, the primaries striped with white on the inner web, and the secondaries on both webs. The tail-feathers are blackish brown, those at the exterior streaked with yellow on the outer, and those in the centre on the inner web. The female is somewhat paler in hue than her mate. The eye is bright red, the beak blackish grey, and the foot dull grey. * * * * * The SOFT-TAILED WOODPECKERS (_Picumnus_) constitute a group of very small birds, with long, straight, conical beaks, which are pointed at the tip. The shape of the leg and claw resembles that of the True Woodpecker. The short wings, in which the fourth and fifth quills are the longest, are very blunt and rounded; the tail is composed of twelve soft, rounded feathers, the outermost of which are very short; the plumage is soft, and its feathers few and of unusual size. Most of these birds inhabit South America; Africa possesses one and India three species. We are almost entirely without reliable particulars as to their habits. THE DWARF WOODPECKER. The DWARF WOODPECKER (_Picumnus minutus_) is greyish brown on the mantle; the under side is white, streaked with black; the crown of the head is black, delicately sprinkled with white; the brow of the male is red, that of the female is of the same colour as the rest of the head; and the blackish brown quills are edged with yellow. The tail-feathers are black; those at the exterior have a broad white stripe on the outer, and those in the centre on the inner web. The eye is greyish brown, the beak lead-colour at its base and blackish at the culmen and tip, the foot is lead-grey. This small bird is only three inches and seven lines long and six inches broad; the wing measures one inch and ten lines, and the tail one inch. The Dwarf Woodpecker is met with in all the wooded tracts of coast from Guiana to Paraguay, and is frequently seen in the immediate vicinity of the houses. In summer it lives in pairs, in winter in small parties, that fly to a considerable distance over the surrounding coast. * * * * *