Great Green Macaw

Ara ambiguus

eBird gives this description for the Great Green Macaw:  Enormous lime-green parrot with long tail; unlikely to be confused with any other bird. Blue flight feathers, red on tail and forehead. Prefers forested areas; often seen flying over in pairs or small flocks. Feeds on fruit; can be inconspicuous when feeding in canopy. Loud, raucous calls similar to other macaws.

The Birds of the World website has this to say when introducing this bird:  Treated as globally Endangered, the Great Green Macaw is, as its name suggests, a very large and predominantly green-colored macaw. There is a red frontal band above its huge black bill, and a bare facial area lined with black. The flight feathers are blue above and olive below, and the lower back is also blue, whilst the tail is orange tail. Two subspecies are generally recognized, one principally in Central America, between Honduras and northwest Colombia, and the other in western Ecuador. Its strongholds appear to be in far eastern Panama and adjacent Colombia, where large tracts of intact forest remain. Numbers in Costa Rica and Ecuador, in particular, have shrunk to perilously low levels in recent years, but these populations are the subject of intensive conservation efforts.

I saw my first Great Green Macaw on my birding trip to Costa Rica with Tropical Birding Tours.  Mid-morning of February 6, 2023 we were at La Selva, across the river from the Main Reception Area, and had a local guide who heard a group of Macaws and led us to a vantage point where we could observe them roosting high up in a large tree.  It was an amazing site, and I am very glad to have experienced it!