The '''Sulawesi serpent-eagle''' (Spilornis rufipectus) is a species of [[bird of prey]] of the family Accipitridae, and found within the Sulawesi and Sula Islands sub-region of Indonesia.
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==Description==
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The Sulawesi serpent-eagle is medium-sized, with a length of 16–21 inches, and a wingspan of 41–47 inches. Females are slightly larger than males. The upperparts are a chocolate brown in color, with the top of the head and face blackish-brown to black; a short, but wide crest is erectile on the back of the head, thinly tipped in white. The chest and belly is rufus in color, with the belly heavily barred-to-mottled in white. Primaries, secondaries, and tail are barred. Juvenile birds are nearly all white from the head to the lower belly; they also sport a black "mask" about the eyes.
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===Subspecies===
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*''Spilornis rufipectus rufipectus''; Sulawesi and adjacent islands
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*''Spilornis rufipectus sulaensis''; Banggai and Sula islands