Free-range cockerel in pasture, Chedworth, The Cotswolds, Gloucestershire, England, United Kingdom

Two brown feathered chickens with red combs pecking at the ground on a grassy field, Chicken (Gallus domesticus), Austria, Europe

Close-up portrait of a male willow ptarmigan (Lagopus lagopus) showing early breeding colors in its neck and eye combs, surveying its high-country territory in Southcentral Alaska's Chugach Mountains on an April day. The head and neck will become completely chocolate-brown as the bird's breeding colors develop, Alaska, United States of America

Chickens on a farm; Armstrong, British Columbia, Canada

Side view of a chicken; Armstrong, British Columbia, Canada

Great Black-backed Gulls with a comb in the beak, France