Do the avian species have sizable penis ?
Out of avian species only duck
and ostries have the sizable penis of their male . male bird of other poultry
species do not have sizable penis however they have copulatory orgag which is
called papillae .
pic: male oestries genitle part
Most male
birds, including chicken and quail, have no penises,
but ducks and geese have coiled penises that can measure
up to 9 inches in length. These retract when not in use.
pic:male genitale part of duck