Each of the long middle feathers of a cock's tail.
（公鸡尾部的）镰形长羽毛，鸡翎
Example sentencesExamples
The males are ‘hen feathered’, having none of the long sickle feathers belonging to males of other breeds.
The term hen-cocks is, in consequence, often applied to them; but although the sickle feathers are thus modified, no bird possesses higher courage, or a more gallant carriage.
The only fault I can detect from this photo is the top sickle feather has a spot at the base of the feather where the dark barring is missing.
The tail coverts, sickle feathers, and main tail black both in primaries and secondaries.
These smaller sickle feathers are much like the main sickles but are shorter.
They look too small to be sickle feathers at this stage, but might well be.
Although the sickle feathers in the males took several months for complete growth, it evidently did not interfere with fertility.
Rear part of its back presents a very distinctive look because of large black and white sickle feathers attached with secondary underwing coverts.
Large and strong with long sickle feathers and side hangers.
Then wait until the adult sickle feathers are completely in before they dub the wattles and ear lobes to promote longer tails.
The tail is gracefully accented with long, cardioid curved sickle feathers that drape around their nicely spread tails.
They are characterized by having a beautiful, pheasant-like body with profuse lengthy saddle feathers and long tail furnishings including sickle feathers and side hangers or tail coverts.
The length from the large fowl male's beak to the end of his sickle feather is about 24 inches.
The tail of a Yokohama is not marked by very long sickle feathers but the well developed saddle feathers.
It has the right length of sickle feather and also tail carriage.
A portion of the tail does partially molt its sickle feathers annually and the body feathers may molt only every second or third year.
Definition of sickle feather in US English:
sickle feather
noun
Each of the long middle feathers of a rooster's tail.
（公鸡尾部的）镰形长羽毛，鸡翎
Example sentencesExamples
The tail coverts, sickle feathers, and main tail black both in primaries and secondaries.
Although the sickle feathers in the males took several months for complete growth, it evidently did not interfere with fertility.
These smaller sickle feathers are much like the main sickles but are shorter.
It has the right length of sickle feather and also tail carriage.
The tail of a Yokohama is not marked by very long sickle feathers but the well developed saddle feathers.
Rear part of its back presents a very distinctive look because of large black and white sickle feathers attached with secondary underwing coverts.
The males are ‘hen feathered’, having none of the long sickle feathers belonging to males of other breeds.
Large and strong with long sickle feathers and side hangers.
They look too small to be sickle feathers at this stage, but might well be.
A portion of the tail does partially molt its sickle feathers annually and the body feathers may molt only every second or third year.
The term hen-cocks is, in consequence, often applied to them; but although the sickle feathers are thus modified, no bird possesses higher courage, or a more gallant carriage.
The length from the large fowl male's beak to the end of his sickle feather is about 24 inches.
Then wait until the adult sickle feathers are completely in before they dub the wattles and ear lobes to promote longer tails.
The tail is gracefully accented with long, cardioid curved sickle feathers that drape around their nicely spread tails.
They are characterized by having a beautiful, pheasant-like body with profuse lengthy saddle feathers and long tail furnishings including sickle feathers and side hangers or tail coverts.
The only fault I can detect from this photo is the top sickle feather has a spot at the base of the feather where the dark barring is missing.