An interesting case of avian evolution

To: "L&L Knight" <>, "Birding Aus" <>
Subject: An interesting case of avian evolution
From: "Rosemary Royle" <>
Date: Wed, 21 Mar 2007 10:56:35 -0000
This sounds a very much like the situation with Crossbills in Scotland.

Parrot, Scottish and Common Crossbills - they don't interbreed, have different 
calls and different bills but apparently identical DNA.

On this basis the RSPB has recently decided that they will definitely treat the 
Scottish Crossbill as a separate species - this is particularly relevant as it 
is possibly our only British endemic!

Rosemary Royle

PS There are probably others out there on this list who know more about this 
than me - apologies if I have got the details wrong.

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