The buff-breasted paradise kingfisher (Tanysiptera sylvia) is a bird in the tree kingfisher subfamily, Halcyoninae. It is native to Australia and New Guinea. It migrates in November from New Guinea to its breeding grounds in the rainforest of North Queensland, Australia. Like all paradise kingfishers, this bird has colourful plumage with a red bill, buff breast and distinctive long tail streamers.