The WALL CREEPERS (Tichodroma) are recognisable by their compact body, short neck, large head, and very long, thin, and almost rounded beak, which is slightly curved and pointed at its tip. The feet are strong, the toes slender, and armed with large hooked and pointed claws. The first quill of the small, rounded wing is very short, and the fourth or fifth longer than the rest; the short tail is formed of soft, broad feathers, rounded at their tips. The lax, silky plumage is usually bright in hue, but varies in its coloration at different seasons. The tongue, which resembles that of the Woodpecker, is three-quarters of an inch long, sharp at its extremity, and furnished with numerous bristle-like hooks.
THE ALPINE OR RED-WINGED WALL CREEPER.
The ALPINE or RED-WINGED WALL CREEPER (Tichodroma muraria) is principally of an ash-grey tint; the region of the throat is black in winter and white in summer; the wings and tail are mostly black; but all the quills of the former, from the third to the fifteenth, are of a bright red towards the base, as are the smaller shoulder-feathers, and a narrow border on the outer web of the large wing-covers. The quills are decorated with white or yellow spots on the inner web, and the tail-feathers are bordered with white; the eye is brown; the beak and foot are black. This species is six inches and one-third long, and ten inches and a half broad; the wing measures three inches and a half, the tail two inches and a quarter; the beak is from eighteen to twenty lines long.
This interesting bird is very commonly met with upon the Alps, Pyrenees, Apennines, Balkan, Carpathian, and other mountains. Rüppell saw it on the Altai and Abyssinian ranges. Jerdon tells us that it is common on the Himalayas, and is also found in Cashmere and Afghanistan.
"This bird," writes Jerdon, "is found throughout the Himalayas, from whence it descends in winter to the Alpine parts of the Punjab. It is also found in Cashmere, Afghanistan, and the southern parts of Europe. I saw it frequently near Darjeeling, but only in the winter, at a height of from 2,500 to 5,000 feet or so. I first met with it in a tea plantation at Kursim, hunting along some small, bare ravines that the heat of the sun had made in the ground, and occasionally on the bank of a road. I have also seen it on a rock by the wayside, and on perpendicular cliffs along some of the rivers. It looks very beautiful when flitting about, the fine red on its wings fully displayed; and, indeed, has the appearance rather of a butterfly than a bird. Such specimens as I have examined had eaten spiders and coleoptera." This species has no call-note. In Europe it descends from the Alps, and is found on walls of old buildings, whence the name given by Linnæus. It is stated to breed in clefts and holes of rocks, and in old buildings. The eggs, we are told, are of a fine bright red.
The smallest of the Climbing Birds may be conveniently divided into two groups, the TREE CREEPERS and TREE PeCKERS.
The TRUE TREE CREEPERS (Certhia) are very small and slender, with delicate, sharply-pointed beaks, more or less curved, weak feet, and long toes, armed with large, hooked, and sharp claws. The wings, of which the third or fourth quills exceed the rest in length, are blunt, and formed of weak feathers; the long, narrow, conical tail is divided into two points at its tip, and formed of strong feathers; the lax, soft plumage is of a brownish hue above, and white beneath; the horny tongue has a sharp margin, the tip is thread-like, and the base is furnished with tooth-like appendages. These birds principally inhabit the Eastern Hemisphere and North America.