Distribution in the Americas
Blue Dacnis (Dacnis cayana) are found in Honduras, Nicaragua, Costa Rica, Panama, Columbia, Venezuela, Trinidad, Guyana, Suriname, French Guiana, Ecuador, Peru, Bolivia, Brazil, Paraguay, and Argentina (Parker et al. 1996). Blue Dacnis is found at elevations from sea level to 750 meters. This extends up to 1000 meters in Panama, and up to 1400 meters in some parts of south America, the highest it is found is in Bolivia where it is occasionally found at up to 1650 meters (Isler and Isler 1987, Parker et al. 1996)
The widespread Blue Dacnis has been recorded from a number of habitats, including tropical lowland evergreen forest, flooded tropical evergreen forests, white sand forests, and secondary forests (Parker et al. 1996). It is found in the following Zoogeographic regions: Gulf Caribbean slope, Choco Lowlands, Northern South America, Northern Amazonian, Southern Amazonian, Central South America, and Atlantic forest (Parker et al. 1996). It is also recorded in Humid terra firme and várzea, edges, mature second growth, shrubbery clearings, shaded plantations, parks and in gardens with large trees (Restall et al. 2007). It is also sometimes found in galleries and savanna forests (Restall et al. 2007).