All manner of information about birds is presented. Following each lengthy description are full-color plates of typical members of each species with range-pattern maps for each family's genus and species.Isler aamp; Whitney (2002), Mason (1996), Meyer de Schauensce aamp; Phelps (1978). ... Races appear to intergrade; specimens in N part of range of nominate approach obidensis in extent of black on male throat, and region in E Colombia that isanbsp;...
|Title||:||Handbook of the Birds of the World: Broadbills to tapaculos|
|Author||:||Josep del Hoyo, Andrew Elliott, Jordi Sargatal|