Features - Conservation and science - Taxonomy
Split Infinity – new Nearctic species to come
Posted: 15 Jun 2010
The last decade has seen many familiar birds ‘split’ into separate species, as genetics and behaviour reveal previously under-appreciated differences. David Callahan speculates on how many more are yet to come from across the Atlantic.
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Ticks in waiting - references
Posted: 20 May 2010
These references accompany the article 'Ticks in waiting' in Birdwatch 216: 35-37 (June 2010).
Split infinity - references
Posted: 15 Mar 2010
These references accompany the article Split infinity in the April 2010 edition of Birdwatch.
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