What is the rattle-like noise coming from trees? This behavior might be a mimic of a rattlesnake's rattlng, or it could be a similar behavior that helps to warn off an animal that could be a threat to the gopher snake. Even if you didn’t know a rattlesnake was dangerous, the sound surely is eerie enough to serve as a good warning for all. Does anyone know what that is? Rattlesnake, any of 33 species of venomous New World vipers characterized by a segmented rattle at the tip of the tail that produces a buzzing sound when vibrated. Barred Owl (Strix varia) perched in tree, Ontario, Canada From Mother Nature Network's Laura Moss: Squirrels, pigeons and the occasional raccoon or opossum are about the extent of the backyard wildlife most of us encounter. I don't know. It'll get really loud and quiet down again. Maybe I'm crazy but sometimes it sounds like a rattle snake in the tree in front of my house. Rattlesnake Sounds. When they use this sound, it’s to warn predators to stay away. Animal and Insect Sounds. Many animals and insects can make noises that help them talk to each other, find a mate or defend themselves. The only North American bird I can think of that would have any remote possibility of being confused with a rattlesnake would be a Worm-eating Warbler. Learn about these noisemakers, featured on our poster created exclusively for the National Science Teachers Association, and listen to their sounds below. A rattlesnake’s rattle is named appropriately, since it sounds so similar to a baby’s rattle. Do you hear it too? Rattlesnake Sounds and Video : ... Cicadas, during part of their performance, sound very much like the rattling of a rattlesnake. 7 Animal Sounds You Might Hear In Your Backyard. Because as well as its double hoots and other calls, the Burrowing Owl is known for another hair-raising sound: a long, rattling hiss. 150826-burrowing-owls-hiss-like-a-rattlesnake.mp3 The Burrowing Owl’s vocal abilities have raised eyebrows among birders and scientists alike.