The lesser flamingo is the smallest of flamingos at about 31 inches tall (the male somewhat larger than the female) and weighs about 4 pounds. It has crimson blotches on its outer wings and black under feathers. It has a bright red beak and feet. The neck and legs are longer in proportion to its body than any other species of bird. The 3 front toes are fully webbed , and its hind toe is elevated. It has a unique bill: the lower beak is the larger of the 2 and the upper beak fits into the lower like a lid. Broad areas of the beak have fine comb-like teeth (lamellae). This is the most numerous of all flamingos. The young are grayish brown when born and do not look like an adult for 3 to 4 years.