yellow-faced grassquit Tiaris olivaceus

Very small bird of grassy and weedy areas in tropical and subtropical areas. Male is striking, with rich yellow eyebrow and throat set off by a black face and breast; extent of black on breast variable (less extensive on Cozumel Island birds). Female is notably drab olive overall but shows a ghosting of male’s face pattern; note the conical gray bill, unlike the stubby bill of seedeaters and female buntings.