Hámshüvelyek

Hámshüvelyek refers to the fleshy structures found on the heads of certain birds, most notably gallinaceous birds like chickens, turkeys, and pheasants. These structures are also known by various other names depending on the species and region, including combs, wattles, and caruncles. The primary function of hámshüvelyek is believed to be related to thermoregulation, helping birds to dissipate excess body heat. They are also thought to play a significant role in sexual selection and social signaling. The color, size, and shape of hámshüvelyek can vary considerably between species, and even between individuals of the same species. Males often possess larger and more brightly colored hámshüvelyek than females, which can be an indicator of their health and reproductive fitness. These structures are rich in blood vessels, which contribute to their vibrant colors, often red, blue, or purple. In some species, the hámshüvelyek can change in color or size depending on the bird's mood, social status, or reproductive condition. They are a defining characteristic of many common domestic poultry breeds.