The tail should be black and the sickle feathers tinged with a reddish white.
Piper, Hugh, Poultry—A Practical Guide to the Ch...(2012)
The tail is furnished with additional sickle feathers.
Darwin, Charles, The Variation of Animals and Plants...(2010)
The tail is furnished with additional sickle feathers.
Darwin, Charles, The Variation of Animals and Plants...(2010)