About Eubucco bourcierii (Lafresnaye, 1845)
For the red-headed barbet Eubucco bourcierii, male individuals from all subspecies except E. b. occidentalis weigh between 30 to 41 g (1.1 to 1.4 oz), while females from all subspecies except E. b. occidentalis weigh between 31 to 38 g (1.1 to 1.3 oz). Male E. b. occidentalis weigh 37.8 to 45.1 g (1.33 to 1.59 oz), and female E. b. occidentalis weigh 37.8 to 43.7 g (1.33 to 1.54 oz). Males have a red head, an orange to yellow breast, and a white belly. A white collar separates the head from the olive green back. The extent of red on the throat and chest and the width of the orange-yellow breast band differ between subspecies. Among subspecies, the female’s crown and nape ranges from dull orange to various shades of green. Several subspecies have a black forehead. Females have a green back, a grayish yellow throat, with a yellow to orange band below the throat. Their lower breast is olive-yellow and the belly is white. Like males, females also show some variation across subspecies. The species’ subspecies have the following documented distributions: E. b. salvini is found in Costa Rica and western Panama; E. b. anomalus is found in eastern Panama and probably in adjacent northwestern Colombia; E. b. occidentalis is found on both slopes of the Western Andes in Colombia; E. b. bourcierii is found in the Andes of western Venezuela, the east slope of Colombia's Central Andes, and both slopes of Colombia's Eastern Andes; E. b. aequatorialis is found in coastal mountains and the western slope of the Andes in Ecuador; E. b. orientalis is found on the eastern slope of the Andes in Ecuador and northern Peru. The red-headed barbet lives in the interior and edges of evergreen mountain primary forest, and also in adjacent secondary forest. The species has an overall elevational range of 400 to 2,400 m (1,300 to 7,900 ft), though there is substantial geographic variation in this range.
