Flight call

When birds fly, they have a special way of talking to each other called a "flight call." Just like how we might say "hello" or "goodbye" to our friends, birds use their flight call to say things like "I'm here!" or "Let's go this way!" They make these sounds by wiggling their throat muscles a certain way. These calls are really important for birds because they help them stay together and stay safe while flying. It's like they're constantly chatting with their bird buddies so they can make quick decisions together. So next time you see a flock of birds in the sky, just know that they're probably having a big conversation up there!