You all have seen these birds. Sparrows. Koels. Pigeons. You may think they're annoying. And, they sometimes are. But, they have a lot behind them. How do Pigeons get to their home, for example? Well, Pigeons have an excellent sense of direction. They can find their way home easily that way. Common birds are also an important part of the food chain, snapping up any insects they can find. It's also pretty good for us, as they eat mosquitoes that would have bitten us!