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Juan Fernandez Petrel
Pterodroma externa (Salvin, 1875)
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You can select up to 8 checklists to perform a comparison of taxonomic authorities for this taxon and related concepts:

You can also use one of the pre-defined group of taxonomic authorities below:

The table provided below compares authorities for this taxon and related concept. Names in red are those that differ from the name in the column located immediately to the left.
Species concept American Ornithologists' Union 1st edition (1886)American Ornithologists' Union 2nd edition (1895)American Ornithologists' Union 3rd edition (1910)American Ornithologists' Union 4th edition (1931)American Ornithologists' Union 5th edition (1957)American Ornithologists' Union 6th edition (1983)American Ornithologists' Union 7th edition (1998)American Ornithologists' Union 7th edition (incl. 59th suppl.)
Pterodroma [cervicalis or occulta]  
 
 
 
 
 
 
 
 
 
 
 
Pterodroma cervicalis
White-necked Petrel
Pterodroma cervicalis
White-necked Petrel
* Pterodroma cervicalis  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
* Pterodroma occulta  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pterodroma [externa or cervicalis]  
 
 
 
 
 
 
 
 
 
Pterodroma externa
White-necked Petrel
 
 
 
 
* Pterodroma externa  
 
 
 
 
 
 
 
 
 
 
 
Pterodroma externa
Juan Fernandez Petrel
Pterodroma externa
Juan Fernandez Petrel
Pterodroma externa (externa)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[Pterodroma externa (tristani)]  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

         

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