Antarctic Prion, Pachyptila desolata "Antarctic Prion flying over the South Atlantic" by Liam Q via Flickr, Creative Commons Attribution ShareAlike.

Taxonomy:

Pachyptila crassirostris crassirostris (Add)
Pachyptila crassirostris eatoni (Add)
Pachyptila crassirostris pyramidalis (Add)

Antarctic Prion, Pachyptila desolata

Pachyptila desolata alter (Add)
Pachyptila desolata banksi (Add)
Pachyptila desolata desolata (Add)

Pachyptila salvini macgillivrayi (Add)
Pachyptila salvini salvini (Add)

Pachyptila turtur subantarctica (Add)
Pachyptila turtur turtur (Add)