These woodpeckers are so weird scientists thought they were communists

Acorn woodpeckers create acorn granaries that hold tens of thousands of acorns. Scientists are especially interested in their living arrangements, once described by Cold War ornithologists as communism. Read the rest

Watch ultrasensitive microphones barely register owls flying

This remarkable demonstration of a pigeon, a falcon, and an owl flying past six extremely sensitive high-end microphones shows just how quiet owls are when they fly. Read the rest

Hypnotic videos of birds in flight

Enjoy these trippy, Muybridge-esque videos of flight patterns and wingbeats.

Relative size of great grey owl's body to feathers

Here's a diagram that shows the relative size of a great grey owl's body to its feathers. It's hosted on Wikimedia commons, labelled "Cross sectioned taxidermied Great Grey Owl, Strix nebulosa, showing the extent of the body plumage, Zoological Museum, Copenhagen."

File:Strix nebulosa plumage.jpg (via Beth Pratt) Read the rest