The only species of New World blackbird recorded in Galápagos is the Bobolink. This species is medium-sized with a longish, rather ragged-tipped tail and short, conical bill. Males are readily identified in breeding plumage bur females and juveniles are brown and streaked.
A large chunky passerine with distinctive pointed tail feathers and a conical, pointed bill. ADULT MALE: Head, underparts, wings and tail black; scapulars and rump white; hindneck buff. FEMALE / JUVENILE: Buff-brown overall, with darker streaking on back, rump and (female only) on flanks. Head striped dark brown on sides of crown and behind eye.
Flight call is a repeated "link".