Red-Legged Partridge bird is a dumpy gamebird, it differs from the Grey Partridge in having a black bridle through the eye, curving down across the top of the breast to enclose a white throat. A whitish supercilium outlines a grey and brown crown, and the bill, eye-ring and legs are bright red. The upper breast Red-Legged Partridge bird is marked with a necklace of black spots stretching down from the black throat-ring. The flanks are greyish, boldly marked vertically with bands of black and chestnut and thin whitish lines. The lower breast is grey, the belly rich ochre, and the upperparts are a dull olive-brown. In flight it shows a rusty tail, a feature shared with the Grey Partridge, but only the Red-legged has a grey rump.
A sedentary bird restricted to Western Europe, the population in Britain being derived from an introduction from France in the eighteenth century. Frequently found in arable habitats, it can use a diverse range of cultivated and open country, preferring lowlands though extending up to 2000m in the southern part of its range. It enjoys sunny places, with some barren areas and low vegetation that it can both see above and run across. Small parties are often seen scuttling across bare fields or running startled along country roadsides.
Red Legged Partridge Bird is commonly heard in farmland, with their gruff calls coming from crops and field margins. The main call begins with a few hoarse notes and accelerates into a "gochok-chok-chokhrrr"or "kaku'kaku'kuk'ukhurr", repeated rhythmically. The advertising call of Red-Legged Partridge (males) is a similar "gochak-chak-chak go-chak go chak-chak", and they also give a "kot'tach'eh" and "uh'uh'akh'akh'aar". When flushed, they can make a sharp harsh "schtregh-schtrregh", also given on the ground as a predator alert call. A number of other conversational chuntering calls are given in various different social situations.