Chickens appear to wander around aimlessly, and usually swim in water. When falling they will flap their wings quickly and fall slowly, making them immune to fall damage. Despite this, they will still avoid falling off cliffs high enough to cause fall damage.
They are drawn to light when in a dark environment. When struck, they run around quickly and aimlessly. They can swim, visibly flapping their wings as they stay on the surface, and they can be led around by holding a seed, and are also able to breed with seeds.