The body length is from 26 to 32 cm, and the weight is from 98 to 226 g. In comparison with the body length, the head looks small. A straight and thin beak the length of a head; its top is slightly curved downward. The eyes are large and dark. The face and throat are light beige in color without a pattern. The sides of the neck and with thin streaks of brown, on the chest there are drop-like spots. The belly and the underbone of a pale cream color. The back and coverts are brown with dark stripes and creamy feather tops. The tail is dark brown with a white border.
The species range extends from the northwest of Alaska, the Yukon and British Columbia southward to Oregon and from there to the Great Plains and Great Lakes to the west of Virginia and Maryland . Wintering regions are in South America and extend from southern Brazil to southern Argentina and Chile. Migration from nesting areas begins in August-September. The first wintering birds arrive in South American pampas at the end of September. Lags are still observed in North America until November. Departure begins in early March. As a rule, birds reach their nesting area in April and, accordingly, in the north of the distribution area in May.
Bartramia nests in low-grass meadows, on prairies, and on grassy swamps. During the flight, it is also found in savannas and in open fields, as well as on pampas, airfields and golf courses.
Birds are active during the day and at dusk. In search of food, they run very quickly over short distances, stopping abruptly and starting to peck. Nutrition consists primarily of insects. In this case, locusts, crickets and weevils, as well as various larvae of beetles play an essential role. In addition, it feeds on spiders, snails and earthworms. Most of the prey is collected on the surface of the earth.
As a rule, mating occurs before arrival in the nesting regions. A nest is a hole on the ground lined with dry plant material. In the clutch, as a rule, 4 eggs from cream to pink-beige. The incubation period is 24 days, both parent birds hatch the clutch. Young birds stay with their parents for 32 to 34 days.
