Ruff Philomachus pugnax

Ruff male
Ruff male and female
The Ruff is a type of Sandpiper. The male bird has an amazing ability to fluff up his neck feathers like an enormous ruff (collar - see above) to impress a female.
Reeve
Reeve
Reeves
Outside of the breeding season, male ruff have similar plumage to the plainer females (called reeves) but they are bigger. It is said that the pot-bellied bird with longish neck looks like a speckled gravy boat. Large flocks will gather to migrate from Northern Eurasia to Africa.
Ruff male
Ruff male
Ruff male and female
In the breeding season, their are four types of plumage: males with black or red-brown ruffs (above left: can be plain, striped or mottled) which will claim a territory; males with a white ruff (satellites) which will occupy territory held by another male; males with the patterned male plumage but no ruff nor orange face and with brown head/neck which will live among (and mate with) females; and the females which have plainish speckled plumage.
Ruff male Blonde neck and black ruff
Ruff male
Ruff female Female ruff (reeve)
Ruffs
Ruff male
Ruff