pressed, covered anteriorly with six scutella, posteriorly with a long plate, forming an acute edge; toes scutellate above, the second and fourth nearly equal, the hind toe almost equal to the middle one the third and fourth united as far as the second joint; claws rather long, slender, acute, arched, much compressed.
Plumage soft, tufty, slightly glossed. No bristly feathers about the bill. Wings short, broad, rounded: first quill half the length of the second, which is very little shorter than the third and fourth. Tail of ordinary length, much rounded, of twelve rounded feathers.
Bill dark brown above, yellow beneath. Iris hazel. Feet light brown. The general colour of the upper parts is dark brown, the sides of the head deeper, the fore part of the back brownish-black, longitudinally streaked with white, the quills externally margined with lighter brown down the neck; the sides of the latter mottled with light brown and grey; the under parts of a silvery greyish-white; the abdominal feathers and under tail-coverts tipped with brown.
Length 5 inches, extent of wings 61⁄4; bill along the ridge nearly 7⁄12, along the gap 3⁄4; tarsus 5⁄6, middle toe nearly 3⁄4.
Adult Female. Plate C. Fig. 2, 3.
The female differs very little in external appearance from the male. The black of the back is less deep, and the white lines are less conspicuous; the under parts, also, are of a duller white.