The wallcreeper (Tichodroma muraria) is a small passerine bird found throughout the high mountains of the Palearctic from southern Europe to central China.

[5] In either case, it is closely related to the nuthatches; a 2016 phylogenetic study of members in the superfamily Certhioidea suggests it is a sister species to the Sittidae.

[6] At least one other species of wallcreeper is known from the fossil record, Tichodroma capeki (Late Miocene of Polgardi, Hungary).

Largely hidden when the wings are folded, this bright colouring covers most of the covert feathers, and the basal half of the primaries and secondaries.

[17] The species is resident across much of the Himalayas, ranging across India, Nepal, Bhutan and parts of Tibet and also as a winter visitor in Bangladesh.

[15] The female wallcreeper builds a cup nest of grass and moss, sheltered deep in a rock crevice, hole or cave.

The white eggs measure 21 mm long, and are marked with a small number of black or reddish-brown speckles.

The wallcreeper is an insectivore, feeding on terrestrial invertebrates, primarily insects and spiders, gleaned from rock faces.

Feeding birds move across a cliff face in short flights and quick hops, often with their wings partially spread.