The Great Green Macaw is a pretty uncommon sight in Costa Rica. It is a huge bird, their calls are very loud. I had the opportunity to observe the birds very close in Rio Cuarto. Our wildlife photography guide explained that Green and Scarlet Macaws do not hybridize in the wild, however in this refuge, a pair of Macaws have been interbreeding in the last few years, resulting in hybrids being born. In Rio Frio, where my parents live, it is common to see a pair of these birds flying overhead most of the times I am there. Either they are more common in the area, or a single pair of birds has taken residence. They are easy to identify, as their harsh call is heard from very far away and no other parrot has such a characteristic call, other than the Scarlet Macaw. They like to feed on almond and are likely to be seen perching relatively high in those trees.