3 literature references:

Author:
Year: 2001
Title:
Source: database, ComisiĆ³n Nacional para el Conocimiento y Uso de la Biodiversidad
Author: Gill, Frank, and Minturn Wright
Year: 2006
Title:
Source: Birds of the World: Recommended English Names
Author:
Year: 2005
Title:
Source: website, AOU Check-List (07-2005)