Instruction
1
Determination in the development of the larynx
Take the duck in the right hand and palpate his chest. Pull to the side of his head, just lift up the beak so that the neck was smooth. Put your thumb of the left hand to focus to the last cervical vertebrae. Press down lightly with the index finger of the left hand on the front of the breast of the duck, and define a triangle, formed by the bones of the clavicle, the front end of the sternum and scapula.
Determine whether the detectable in the centre of this triangle the tubercle of about the size of 4 mm in diameter, moving at movement of the beak up and down, if Yes, then it's a duck. From a female this tubercle is absent.
Take the duck in the right hand and palpate his chest. Pull to the side of his head, just lift up the beak so that the neck was smooth. Put your thumb of the left hand to focus to the last cervical vertebrae. Press down lightly with the index finger of the left hand on the front of the breast of the duck, and define a triangle, formed by the bones of the clavicle, the front end of the sternum and scapula.
Determine whether the detectable in the centre of this triangle the tubercle of about the size of 4 mm in diameter, moving at movement of the beak up and down, if Yes, then it's a duck. From a female this tubercle is absent.
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2
Definition voice
Take the bird in hand, that you'll make her cry. Listen to the voice of birds. Duck starts to quack shrilly, Drake also makes loud hissing sounds with a touch of whistle. Such vocal Drake explained by the presence of saccular extension in the fork of the trachea.
Take the bird in hand, that you'll make her cry. Listen to the voice of birds. Duck starts to quack shrilly, Drake also makes loud hissing sounds with a touch of whistle. Such vocal Drake explained by the presence of saccular extension in the fork of the trachea.
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3
The definition on the genitals
The male duck has one anatomical feature not characteristic of most birds – pseudopenis, which is able to turn out. This method, of course, requires certain skills.
Guide the stretching of the outer portion of the anus with the thumb of the left hand and thumb and index finger of the right hand.
Place your thumb of the right hand on the edge of the cloaca and move up the cloaca revealed and exposed sexual organ of a duck in curved folds-size 3 – 4 mm.
You can just pull the tail to the back, in most cases this will be enough to detect sex differences.
The male duck has one anatomical feature not characteristic of most birds – pseudopenis, which is able to turn out. This method, of course, requires certain skills.
Guide the stretching of the outer portion of the anus with the thumb of the left hand and thumb and index finger of the right hand.
Place your thumb of the right hand on the edge of the cloaca and move up the cloaca revealed and exposed sexual organ of a duck in curved folds-size 3 – 4 mm.
You can just pull the tail to the back, in most cases this will be enough to detect sex differences.

4
The definition in appearance.
Visually try to distinguish a Drake from a duck's back with 2-3 months.
Look at the neck of the bird, the female's more refined, head shape is close to round, and the male is relatively wide, which forms the basis for a large oblong head.
Pay attention to the tail, in contrast to the Mallard duck on the tail ring is formed of several feathers.
Visually try to distinguish a Drake from a duck's back with 2-3 months.
Look at the neck of the bird, the female's more refined, head shape is close to round, and the male is relatively wide, which forms the basis for a large oblong head.
Pay attention to the tail, in contrast to the Mallard duck on the tail ring is formed of several feathers.
5
The definition of the behavior
During the flight, two representatives of the duck family and when they are floating in the water - duck is usually ahead, and Drake behind her. But we must make allowances for the season: while sitting on the nest (incubating eggs) pair flying or floating ducks may prove to be just the two drakes.
During the flight, two representatives of the duck family and when they are floating in the water - duck is usually ahead, and Drake behind her. But we must make allowances for the season: while sitting on the nest (incubating eggs) pair flying or floating ducks may prove to be just the two drakes.