Crested Terns
![Image of Thalasseus Boie & F 1822](https://beta-repo.eol.org/data/media/99/14/b7/542.bf6c4334ff9a2817f9fff385f3c9cb6d.580x360.jpg)
Description:
A pair of Crested Terns circling each other with their wings held out, presumably part of a courtship routine.
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