Distribution and variation of the brown towhees.

Lignende værker

• Temperature Regulation and water requirements of the brown and Abert towhees, Pipilo fuscus and Pipilo aberti.
  af: Dawson, William R.
  Udgivet: (1954)
• Species Formation in the red-eyed towhees of Mexico.
  af: Sibley, Charles G.
  Udgivet: (1950)
• Studies on the variation, distribution and evolution of the genus Partula.
  af: Crampton, Henry Edward
  Udgivet: (1916)
• Distribution, variation, and relationships of the Montane Vole, Microtus montanus.
  af: Anderson, Sydney
  Udgivet: (1959)
• Studies on the variation, distribution, and evolution of the genus Partula. The species inhabiting Moorea.
  af: Crampton, Henry Edward
  Udgivet: (1932)