Oilbird

the guacharo cave is located near the town of Caripe

also called the guacharo, the oil bird spends its day in dark caves, navigating with sonar like a bat.At night it leaves the cave to forage for fruit, which it brings back to the cave to feed its young.baby oil birds become hugely fat feeding on the fruit, reaching twice the adult weight at their maximum size. they lose their baby fat when their feathers begin to grow in.Indians rendered the young oilbirds for an oderless oil for cooking and light;hence the birds name:)

The Oilbird, or Steatornithidae, is the worlds only nocturnal fruit eating bird. It uses echolocation to find it's fruit during the day. At night, it's uses its' large, light sensitive eyes to search for food. It's echolocation use a clicking sound at an audible frequency of about 7,000 cycles per second. Unlike a bats cry, which is supersonic.