Red-capped Flowerpecker Dicaeum geelvinkianum

Tiny bird, black above, pale below, with fiery bright red cap, red chest patch, and red rump. Plain juvenile has orange bill but otherwise unmarked; lacks the reddish undertail of juvenile Mistletoebird. Found in mangroves and forest on New Guinea and islands in the northern Torres Strait. Calls similar to Mistletoebird, a high-pitched short "seeep" and buzzing sounds.