Large-footed finch

Even though it may look otherwise this birdie was not mad but singing.
They have a thin seet call, and the male’s song, given from the ground or a low perch, consists of a mix or whistles, warbles, chatter and mimicry.
They are a large, robust terrestrial species, 20 cm long, grey head, becoming black on the throat, forehead and crown sides. The upper parts are dark olive and the wings and tail are black with olive fringes. The underparts are bright olive with a brown tint to the flanks and lower belly. Young birds have a streaked dark olive head, blackish scaling to the upperparts, and buff-olive underparts.