Seychelles Turtle Dove (Nesoenas picturata ssp. rostrata)
The Seychelles Turtle Dove is a subspecies of the Madagascar Turtle Dove (Nesoenas picturata (Temminck)); as its name implies, it inhabited to Seychelles Islands in the Indian Ocean. It is known to have inhabited at least the islands of Cousin and Cousine, Mahé and Praslin, as well as Aride- and Bird Island, where the last pure-bred birds were found.
The form is sometimes considered a full species; it disappeared du to hybridization with (nominate) Madagascar Turtle Doves, that somehow reached the Seychelles, either by themselves or with human aid. No pure-bred birds are known to exist now; however, their genes live on in the turtle dove population that now inhabits the Seychelles.
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syn. Streptopelia picturata ssp. rostrata (Bonaparte)
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References:
[1] Julian P. Hume: Extinct Birds. 2. Edition. Bloomsbury Natural History 2017
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edited: 07.05.2022