Birds of Bolivia

    PASSERIFORMES: Thraupidae (Tanagers & Allies)  
Genus: Geospizopsis (2 species, 2 worldwide)


Ash-breasted Sierra Finch
Ash-breasted Sierra Finch (Geospizopsis plebejus plebejus) Male
Colca Canyon, Peru  
   
Photograph by Tom Friedel   © All Rights Reserved.

Ash-breasted Sierra Finch
Ash-breasted Sierra Finch (Geospizopsis plebejus) Female
Chivay, Peru
  On female note unstreaked throat.
   
Photograph by Tom Friedel   © All Rights Reserved.

Note small size and small thin bill.

Plumbeous Sierra Finch
Plumbeous Sierra Finch (Geospizopsis unicolor geospizopsis) Male
PNN Los Nevados, Colombia  
   
Photograph by Tom Friedel   © All Rights Reserved.

Plumbeous Sierra Finch
Plumbeous Sierra Finch (Geospizopsis unicolor geospizopsis) Female
Cajas National Park, Ecuador  
   
Photograph by Tom Friedel   © All Rights Reserved.

Plumbeous Sierra Finch
Plumbeous Sierra Finch (Geospizopsis unicolor geospizopsis) Immature
Sumapaz National Park, Colombia
  The immature is browner than the female.
   
Photograph by Tom Friedel   © All Rights Reserved.

Often the most common widespread Sierra Finch, and often the one found at the highest altitudes. The 'inca' subspecies from Peru to Bolivia is 'monomorpic' meaning the male and female are very similar. However the immature is very streaked like the immature and female from other races.


© Tom Friedel - All Rights Reserved, except for images and data otherwise noted.       Colombia       Panama       Ecuador       Costa Rica       Mexico
Experimental sites:       Peru       Venezuela       The World       Brazil       Bolivia
Really Experimental sites:       Guyana       Cuba