IDNLearn.com: Your go-to resource for finding precise and accurate answers. Get accurate and comprehensive answers to your questions from our community of knowledgeable professionals.
Answer: Birds pick up oil on their beaks, by rubbing against the uropygial or preen gland near the tail, and then rub it over their feathers. This makes the water unable to break through the oil.
Feathers repel water because birds pick up oil on their beaks and when they fluff their feathers later the oil is transferred onto the feathers. As water cannot penetrate through the oil coating, the feather is waterprof.
Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.
