7 Strange Ways Birds Use Their Feathers

TL;DR

Feathers have surprising functions beyond flight, from creating sounds to filtering water and aiding in hunting.

Transcript

SciShow is supported by Skillshare. [INTRO ♪] You don’t need to know much about birds to realize that their feathers are pretty awesome. They come in a dazzling array of shapes and colors, they keep birds warm and dry, and of course, allow them to fly. And since feathers are made out of the protein keratin, they’re also super strong and mostly wate... Read More

Key Insights

• 😘 Feathers are used by birds like club-winged manakins and woodcocks to create sounds for mating calls.
• 🦉 Owl feathers have specialized features like serrations and fringes for silent hunting, with potential applications in aerospace technology.
• 👋 Owl hearing relies on reflector feathers in facial discs, amplifying sound waves like radar dishes.
• 🪶 Grebes consume feathers to slow digestion, filter sharp items, and protect their digestive tracts.
• 🐦‍⬛ Bird species like black herons and green herons use feathers in unique fishing techniques to enhance their hunting success.
• 💦 Sandgrouse collect water using specialized belly feathers through capillary action, benefiting chick feeding without compromising adult hydration.
• 🦶 Feathers on ptarmigans' feet act like snowshoes, reducing sinking in snow and saving energy during travel.

Questions & Answers

Q: How do club-winged manakins use their feathers for mating calls?

Club-winged manakins have specialized feathers that vibrate together quickly to produce high-pitched sounds, similar to crickets' stridulation, during courtship dances.

Q: What special feather features contribute to owls' near-silent hunting ability?

Owls have specialized serrations and fringes on their wings that reduce turbulence and noise, along with a velvety covering that absorbs sound, enabling stealthy hunting.

Q: Why do grebes consume their feathers?

Grebes ingest feathers, which form balls in their stomachs, to slow digestion, filter out sharp items, and prevent damage from fish bones and insect parts in their digestive tracts.

Q: How do sandgrouse use their belly feathers to collect and transport water to their nests?

Sandgrouse use their belly feathers' unique structure to pick up water through capillary action and ferry it back to their nests, allowing adult birds to feed chicks without sacrificing their own water intake.

Summary & Key Takeaways

• Feathers serve numerous functions beyond flying, such as creating sounds for mating calls in birds like the club-winged manakins and the American woodcocks.

• Some feathers help birds like owls remain silent during hunting by reducing noise through specialized features like serrations and fringes.

• Feathers play a crucial role in owl hearing, with facial discs lined with reflector feathers acting as radar dishes to amplify sound waves.