On breeding grounds, eats mostly flies and beetles, also other insects, spiders, small crustaceans. Diet during migration and in winter varies. On coast eats many amphipods and other crustaceans, small mollusks, marine worms, insects. Inland migrants probably eat mostly insects. Nesting Male sings while performing display flight over territory.
Site is on ground, usually under low shrub or grass clump.
Nest is shallow depression with sparse lining of sedges, leaves, lichens. Male makes several nest scrapes, female chooses one. Whitish to brown, with darker brown spots. Incubation is by both parents, about 21 days. At first, female incubates most of time, male only during midday, but male's proportion increases later.