Interference
Generally, hybridisation of macaws in the wild is rare, so I am assuming this Verde Macaw, a cross between a Scarlet Macaw and a Great Green Macaw, may have come about because it was an offspring of two members of a mixed flock of Scarlets and Greens that visited a small Costa Rican farm for a feed and a photographic opportunity for tourists.
A less charitable view is that the farmer was intentionally encouraging cross-breeding for other purposes, including the pet trade. The flock was free to fly in and out of the property at will, but there were a couple of large nest-boxes in view.
Interference
Generally, hybridisation of macaws in the wild is rare, so I am assuming this Verde Macaw, a cross between a Scarlet Macaw and a Great Green Macaw, may have come about because it was an offspring of two members of a mixed flock of Scarlets and Greens that visited a small Costa Rican farm for a feed and a photographic opportunity for tourists.
A less charitable view is that the farmer was intentionally encouraging cross-breeding for other purposes, including the pet trade. The flock was free to fly in and out of the property at will, but there were a couple of large nest-boxes in view.