Pale crag martin to do so, it would cast doubts on their specific distinctness. There are several subspecies differing in plumage shade or size, although the differences are clinal, and races interbreed where their ranges meet. The pale crag martin of the nominate subspecies "P. o. obsoleta" is 12–13 cm (4.7–5.1 in) long with light brown upperparts, becoming paler on the lower back, and a short square tail that has small white patches near the tips of all but the central and outermost pairs of feathers. It has a pale grey throat, upper breast and underwing coverts, and the rest of the underparts
Fawn (colour) use the term "fawn" to describe a red dog (at the Eumelanin locus) that carries a copy of the dilution gene; in Dobermans this color is more commonly called "Isabella". Fawn (colour) Fawn is a light yellowish tan color. It is usually used in reference to clothing, soft furnishings and bedding, as well as to a dog's coat color. It occurs in varying shades, ranging between pale tan to pale fawn to dark deer-red. The first recorded use of "fawn" as a colour name in English was in 1789. The fawn coat color is found in many breeds, such as