Arguably one of the most interesting birds in the Bladen Nature Reserve, in terms of its song, nest-building skills and appearance, is the Montezuma’s oropendola, locally known as yellow-tail. Just upstream from the BFREE crossing is a rookery of around 100 nests, hanging high above the tranquil Bladen River.
The extraordinary song of this outlandish-looking bird consists of eerie vocalization that begins with a few high-pitched thin notes followed by a sound like the crumpling of brittle paper, and ends with an explosive, rich, hollow gurgling that carries for a considerable distance. This distinctive song is produced while the bird falls forward, remaining attached to the limb in a flipping motion – a bizarre feat to behold!
Considered a signature species of the rainforest, the bird’s nest-building skills are legendary. The four-foot long nests are constructed from thin strips of palm leaves skillfully woven into safe and sound brooding baskets. Like many of the bat species in the Maya Mountains, the oropendola is a frugivore, eating a variety of wild figs, sapodilla fruits and mammay apples, and is therefore considered an important agent of seed dispersal in tropical rainforests. These incredible birds are just one of the over 350 species of birds documented at BFREE.