A diagram of the body structure of a rooster

comb  The comb has a high concentration of blood running through it on a constant basis.
This blood circulation helps to cool a chicken down during hot weather. It dissipates body heat and cools the blood，when the air temperature is cooler than a chicken’s body temperature
beak  A beak is used for pecking, grasping, and holding (in probing for food, eating, manipulating and carrying objects, killing prey, or fighting)

wattles  . In birds, wattles are often an ornament for courting potential mates. Large wattles are correlated with high testosterone levels, good nutrition, and the ability to evade predators, which in turn indicates a potentially successful mate.

[color=var(--IXoxUe)] breast   A chicken breast is a pectoral muscle

shank    A chicken's shank is the bottom part of her leg, above the foot, but below the hock.

eye  Chickens can use each eye independently on different tasks simultaneously. Chickens have mono-vision
feather  Together, the plumage plays key roles in keeping the bird warm, support- ing the biomechanics of flight, and radiating welcome or repul- sive messages to other animals
wing  Chickens use their wings for display purposes, cocks in particular will spread their wings to make themselves look bigger and fiercer. They can also use them while running, wing flapping lifts them off the ground so their strides become longer
vent  The male has a papilla, which is a small bump that the rooster can push out and use to deliver sperm into the female's cloaca, also called a vent. To do this, a rooster will mount a female from behind, steadying himself by grabbing the feathers of her back and head with his claws and beak.
toes  Most chickens have three toes projecting forward and one projecting back, sometimes referred to as the claw. A few breeds, however, have five toes on each foot.