Following closely in the wake of the Cuckoo, if not occasionally preceding it, comes the Wryneck, or Cuckoo’s-mate, as it is popularly called from the habit referred to. In some respects it is a very remarkable bird, for not only is its appearance quite unlike that of any other of our summer migrants, but its actions and habits are also totally different. In size no larger than a Skylark, it at once attracts attention by the beauty of its plumage which, although of sombre hue, is prettily variegated with greys and browns of different shades, here and there relieved with black. The under parts, of a soft grey inclining to yellow, are transversely bound with delicate wavy lines. Although for the purpose of comparison, this species may be likened in point of size to the familiar Lark, its structure and habits fit it for a very different mode of life. It is a scansorial or climbing bird, like the Woodpeckers, with toes directed two in front and two behind; hence the term yoke-footed, which has been applied to the particular group of birds in which it is included. The genus to which this bird belongs has generally been associated with the genus _Picus_, to which it undoubtedly bears some affinity. The extensibility of the tongue is the chief character which they have in common, but in the one the extremity is barbed, in the other it is smooth. The fourth toe in the Woodpecker is directed somewhat outwards and backwards, whereas in the Wryneck its natural position is directly backwards, parallel to the first. The bill of the latter more nearly resembles that of _Picus_ than that of _Cuculus_, although it is not wedge-shaped at the point. On the other hand the tail has no resemblance to that of the Woodpecker. The genus _Jynx_, therefore, seems to stand between these two genera and to form as it were their connecting link.