Your login:

Password:

Stay signed in

Enter your login name or your email address and click on Send reminder to receive a reminder by email.


Welcome Guest

Great Grey Owl

Strix nebulosa Forster, JR, 1772

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. 60th suppl.)
* Strix nebulosa Ulula cinerea
Great Gray Owl
Scotiaptex cinerea
Great Gray Owl
Scotiaptex nebulosa
Great Gray Owl
Scotiaptex nebulosa
Great Gray Owl
Strix nebulosa
Great Gray Owl
Strix nebulosa
Great Gray Owl
Strix nebulosa
Great Gray Owl
Strix nebulosa
Great Gray Owl
Strix nebulosa nebulosa Ulula cinerea cinerea
 
Scotiaptex cinerea cinerea
 
Scotiaptex nebulosa nebulosa
 
 
 
Strix nebulosa nebulosa
 
 
 
 
 
 
 
Strix nebulosa nebulosa (nebulosa)  
 
 
 
 
 
Scotiaptex nebulosa nebulosa
 
 
 
 
 
 
 
 
 
[Strix nebulosa nebulosa (barbata)]  
 
 
 
 
 
Scotiaptex nebulosa barbata
 
 
 
 
 
 
 
 
 
[Strix nebulosa nebulosa (yosemitensis)]  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[Strix nebulosa nebulosa (cinerea)]  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Strix nebulosa lapponica Ulula cinerea lapponica
 
Scotiaptex cinerea lapponica
 
Scotiaptex nebulosa lapponica
 
 
 
 
 
 
 
 
 
 
 
Strix nebulosa lapponica (lapponica)  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[Strix nebulosa lapponica (elisabethae)]  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Avibase has been visited 295,881,008 times since 24 June 2003. © Denis Lepage | Privacy policy