Colour pattern of adults varies little. Broad brown stripe down back, edged with black and bordered on each side by conspicuous whitish to beige dorsolateral stripe that begins on nose and extends over eye and back alongside body onto tail. A pale stripe, starting on upper jaw, occurs low on each side and is separated from the first by a broad dark brown or black band originating on side of head and usually extending well out onto tail. Tail dull blue (in juveniles) or grey. In the breeding season reddish or orange color appears on side of head and chin and occasionally on sides, tip, and underside of tail.