The puaiohi, or Small Kauaʻi Thrush, is a medium-sized (16.5 to 17.8 centimeters [6.5 to 7.0 inches] long; 37.0 to 43.0 grams [1.3 to 1.5 ounces]), slender, long-legged thrush endemic to Kauai. Adults are olive-brown above, gray below, with a diagnostic white eye-ring and outer rectrices. Legs are light pink and the bill is black (Snetsinger et al. 1999). Males and females are similar. Juveniles have distinctive spots and scalloping on their breast and wings. The song is simple and consists of a preparatory whistle and a prolonged trill, followed by several sharp descending notes; call note is a simple, dry, raspy hiss (Snetsinger et al. 1999). Puaiohi are most often observed alone or in pairs, as opposed to social groups or multi-species flocks.