The female is much drabber, with brown upperparts and whitish underparts. Juveniles are drabber and may contain some rufous coloration on the wing. Non-breeding plumage is drabber with the chin and foreneck white. The drabber winter plumage is basically brown above and white below. These latter species are commonly dimorphic, with the female being drabber in color. The immature bird is like the female, but is drabber. Sexes are similar, but the juvenile is a drabber version of the adult.