shed in Ptarmigan, [203];

in Ratitae, [26]

Clibanornis, [484]

Climacteris, [571], [572]

Clitonyx, [502], [503]

Clucking Hen, [256]

Clypeïcterus, [579] f.

Clytoceyx rex, [386]

Clytoctantes, [488]

Clytorhynchus pachycephaloïdes, [533]