Bird Beaks: Anatomy, Care, and Diseases
Bird Beaks: Anatomy, Care, and Diseases Anatomy A bird, like a mammal, has two jaws: the upper is the maxilla and the lower is the mandible. The nostrils, or nares, are located at the junction between the beak and the head. In most parrots, a small, round, brown structure, called the operculum is found inside of the nostril. This is comprised of cartilage and should not be mistaken for an obstruction or foreign body, such as a seed. Some species of birds, such as the parrots, have an area of fleshy tissue that contains the nares. This is called the cere. In budgies, the cere is blue in adult males, and a pinkish brown in females. The beak is comprised of the jaw bone covered with a lightweight sheath called the rhamphotheca. The rhamphotheca is made of keratin, which is the same substance found in antlers or our fingernails. And like horns or fingernails, the beak is constantly growing. Depending upon the species, a bird's beak grows from one to three inches a yea...