Ruddy turnstone Ruddy turnstone The ruddy turnstone ("Arenaria interpres") is a small wading bird, one of two species of turnstone in the genus "Arenaria". The scientific name is from Latin. The genus name "arenaria" derives from "arenarius", "inhabiting sand, from "arena", "sand". The specific "interpres" means "messenger"; when visiting Gotland in 1741, Linnaeus thought that the Swedish word "Tolk" "interpreter" applied to this species, but in the local dialect the word means "legs" and is used for the redshank. It is now classified in the sandpiper family Scolopacidae but was formerly sometimes placed in the plover family Charadriidae. It is a highly
Ruddy turnstone their level of dominance. A lowered tail and a hunched stance is associated with chasing and aggression, and thus a dominant individual. Dominance in aggression is age-related, with juveniles assuming the subordinate role a disproportionate amount of the time. The plumage patterns of ruddy turnstones exhibit an unusual amount of variation in comparison with other shorebirds. Turnstones use these unique plumage patterns to recognize individuals and discriminate intruders in their territory from neighbours occupying an adjacent territory. When a fake fiberglass turnstone model is placed in a turnstone's territory, the occupant is less likely to respond aggressively if the model