Claim: A Prairie warbler, a type of bird that has yellow underparts with dark streaks on the flanks, and olive upperparts with rusty streaks on the back, weighs about 7.7 grams, has a seven inch wingspan, a tail about 1.87-1.99 inches, and is about 4.3-5.2 inches long.
Evidence: The prairie warbler (Setophaga discolor) is a small songbird of the New World warbler family. These birds have yellow underparts with dark streaks on the flanks, and olive upperparts with rusty streaks on the back; they have a yellow line above the eye, a dark line through it, and a yellow spot below it. 7.7 g (0.27 oz) weight 7 in (180 mm) wingspan 47.5–50.5 mm (1.87–1.99 in) tail 4.3–5.2 in (110–130 mm) length