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Australia
In the tropical and subtropical Old
World...five subspecies identified.
Thalasseus bergii
(L 18-19 " WS 49-51"
Wt 11.4-14.0 oz)
Michaelmas Cay
Great Barrier Reef
25Oct2015
Great Crested Tern
Thalasseus is Greek for
maritime.
© Wikipedia
 
Karl Heinrich Bergius
© Greg
McLachlan
Macaulay
Library