Chickens do not have a dewlap like some other birds or reptiles. Instead, they have a comb, which is the fleshy crest on the top of their heads, and wattles, which are the fleshy extensions under their beaks. These features can vary in size and shape among different breeds of chickens and play roles in thermoregulation and mating displays. While not a dewlap, these characteristics serve similar purposes in terms of communication and health.
In most breeds the doe has a dewlap and a buck is disqualified if it has a dewlap. Some breeds do not have a dewlap at all. A doe will have a dewlap by the time she is breeding age (which is 6 months:)
No, several other animals have a dewlap
a turkey's dewlap is the flap of skin under its neck. Also called a Wattle.
Anoles
It's the female rabbits that have the extra fur. It's called a dewlap. It's different from the dewlap of other animals in that it's fatty, and the mother rabbit plucks fur from her dewlap to line her nest for her babies.
dewlap or caruncle
dewlap
Nope. Love the animal as it is. :D
A dewlap or bell
breeding and territorial reasons
The Grevy's zebra is the only type of zebra that has a dewlap, which is a flap of skin hanging from their neck. It is more prominent in males and is used for communication and displays during mating rituals.
Male rabbits do not have a dewlap; it is a feature typically found in female rabbits. The dewlap in female rabbits is a loose fold of skin under their chin and serves multiple functions, such as storing fat reserves, aiding in regulating body temperature, and providing cushioning during nursing.