The Red-necked Phalarope is a small shorebird with a thin, needle-like bill. Both sexes have a dark head with a white spot above the eye, white throat, and a dark back with bold, buff-coloured streaking. The bright, chestnut-red stripe that extends down the sides of the neck from behind the ear is distinctive. Females have brighter and bolder colours overall and are slightly larger than males.
Weight: 29 to 44 g (1.0 to 1.6 oz). Length: 18 to 20 cm (7.1 to 7.9 in).