Posted by Adam Quinan on March 01, 2018 at 08:52:04 user Adam.
In Reply to: Re: Bird Book was Re: Well-known book on Naval Warfare posted by MarkD on March 01, 2018 at 03:53:55:
Interesting, the gavia (or colymbus) immer immer name is because there is a sub-species gavia immer elasson (from memory) so they needed to differentiate the two, I don't know how they differ.
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