Anyine know Bill Marks?

General birdwatching discussion, help with bird identification, and all other things relating to wild birds and birding in NZ that don't fit in one of the other forums.
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Anyine know Bill Marks?

Postby sandyw » Sat Jul 14, 2018 7:16 pm

Pied shags have a pattern of darkish lines and marks on their bills. I wonder if individual birds could be distinguished from these patterns, rather like the way individual whales can be identified from distinctive markings. Any ideas if anyone has studied this?
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Neil Fitzgerald
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Location: Hamilton, New Zealand

Re: Anyine know Bill Marks?

Postby Neil Fitzgerald » Fri Jul 20, 2018 12:48 pm

Many years ago I knew a Ben Marks, but no Bill. Oh, you mean lower case bill marks ;)

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