Sentence examples for eye colouration from inspiring English sources

Among its 27 species, there is a remarkable variety of eye colouration.

Mating decisions are based on assessment of complex male sexual signals; the most important is the red throat, a carotenoid based signal that contrasts strongly with males' blue body and blue eye colouration [ 59, 60].

Perez-Rodriguez (2008) reported that in red-legged partridge A. rufa, bill and eye-ring colouration were highly repeatable within individuals, both within the breeding season and between two consecutive years.

Hence, blue egg colouration must be maternally inherited.

We were able to distinguish the fostered mice by the black colouration of the eyes in the F1 CBA/Ca × C57BL/10) pups compared with unpigmented eyes of the Parkes strain pups.

There are several stripes or bars of lighter colouration behind the eyes and at the top of the neck that help distinguish it.

Limousin typically have lighter colouration around their eyes and muzzle.

There will often be lighter colouration around their eyes and noses.

Extracts showed a pink colouration, probably due to eye pigments.

Guernseys do not have the fawn colouration nor the dark eyes, nose, hooves and tail switch that Jerseys have, and are more brown than fawn, and have more white on them than a typical Jersey would.

They also have lighter colouration around their noses and eyes, and on the inside of each leg.