African Darter
Anhinga rufa
The African darter is 80 cm (31 in) long. Like other anhingas, it has a very long neck. The male is mainly glossy black with white streaking; females and immature birds are browner. The African darter differs in appearance from the American darter most recognisably by its thin white lateral neck stripe against a rufous background colour. The pointed bill prevents confusion with cormorants.
ID text from Wikipedia, CC BY-SA 4.0
Oriental Darter
Anhinga melanogaster
The Oriental darter is like all other anhingas, a cormorant-like species that has a very long neck. The structure of the neck is as in other species of darter with strongly developed muscles about a kink in the neck at the 8th and 9th vertebrae that allows it to be flexed and darted forward with rapid force to stab fish underwater. The edges of the commissures of the mandible tips have minute inward pointing serrations that hold impaled fish. The adult plumage above is black and the wing coverts and tertials having silvery streaks along the shaft.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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