Willow Warbler - 'eversmanni'-type (1 Viewer)

[Gonçalo Elias]

Hi everyone,

I have seen several times the expression 'eversmanni-type' referring to Willow Warbler. As far as I understand this name does not correspond to any subspecies, but I was unable to find out what it means or where it came from.

Is it an invalid name? An unrecognized subspecies? A synonym for something else?

Thanks,
Gonçalo

 

[mb1848]

It comes from Bonaparte 1850, from a bird of Eversmann in Kazan.
https://www.biodiversitylibrary.org/item/141467#page/455/mode/1up .

Now? Ticehurtst Systematic review of genus Phylloscopus 1938 nixed it?
Phylloscopus trochilus eversmanni (Bonap.) ; C. B. Ticehurst,
Bull. B. O. O. xxiii. 1908, p. 20.
Mr. Jobling's Key and therefore Birds of the World says P. eversmanni is P. trochilus acredula.
Bonapart cites:
https://www.biodiversitylibrary.org/item/48330#page/76/mode/1up .
https://www.biodiversitylibrary.org/item/63932#page/208/mode/1up .
Evermann cites:
https://www.biodiversitylibrary.org/item/52447#page/72/mode/1up .

 

[Gonçalo Elias]

Thanks mb1848.