Appearance
Both genders resemble the male snail kite, and the slender-billed kite has often been included in the same genus, ''Rostrhamus''. Adults always have yellow eyes and the all-dark tail is noticeably shorter than in the snail kite. Immatures resemble adults, but have brownish eyes and three narrow white bands in the tail.
Food
As in the snail kite, the unusually shaped bill is an adaption for feeding on aquatic snails, and while it sometimes takes crabs, it mainly feeds on snails of the genus ''Pomacea''.References:
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