A bird having a distinct band of color across the tail, as the hen harrier.

A female or immature Hen or Montagu's Harrier ( Circus cyaneus/pygargus). Used either to separate males from females ("Had four Hen Harriers, three of them ringtails") or to refer to an unidentified individual.

raccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings

North American raccoon

an immature golden eagle

a cat-sized carnivore with a raccoon-like tail

Ringtail in the rat is a condition in young suckling rats and mice, believed to be caused by low relative humidity (less than about 30%). There are annular constrictions on the tail that may progress to necrosis and sloughing of the tail tip. Ringtail can be prevented by maintaining relative humidity at approximately 50%.