OLSON, STORRS L., Division of Birds, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington DC 20560.

• Zootaxa Vol. 4282 No. 3: 27 Jun. 2017 - Article
  

  A new extinct species of large bullfinch (Aves: Fringillidae: Pyrrhula) from Graciosa Island (Azores, North Atlantic Ocean)

  
  Abstract