Deforestation of the Amazon rainforest The completion of the roads was followed by a wave of resettlement; these settlers had a significant effect on the forest as well. Research conducted by Leydimere Oliveira et al. has shown that the more rainforest is logged in the Amazon, the less precipitation reaches the area and so the lower the yield per hectare becomes. Thus for Brazil as a whole, there is no economic gain to be made by logging and selling trees and using the logged land for pastoral purposes. A September 2016 Amazon Watch report concludes that imports of crude oil by the US are driving
Black-billed amazon in mountainous rainforest, usually limestone rainforest, feeding on fruit, seeds, and nuts, and will take cultivated fruit like mangos, papayas and cucumbers as well as wild fruits. The black-billed amazon was once as common as the yellow-billed amazon, but has become much rarer due to deforestation and hurricane damage fragmenting its forest, poaching for food and the pet trade in wild parrots. The black-billed amazon's call is bugling while in flight however, while perched it growls and rumbles. Often its calls tend to be sharp and screechy. Black-billed amazon The black-billed amazon ("Amazona agilis") is a parrot endemic to Jamaica.