There are more and more animals endangered nowadays, birds are no exceptional. Many kinds of birds died out in the past decades and many other kinds of birds are in peril of extinction because of human’s destruction of their natural habitat. As the economy develops, humans exploit all kinds of resources, causing air pollution and forest degradation. Without their habitat, birds can go nowhere, their number decrease draftily every minute. It’s urgent to protect birds. First, we must make concerning laws to protect birds in danger and punish those who break the laws severely. Second, we must take some measures, like refusing to buy products made from valuable and rare birds to protect birds effectively. As the saying goes: no buying, no killing. Birds are our friends and part of our environment. Third, we should raise people’s awareness to protect birds and our environment. In this way, we can build a harmonious society and ensure a sustainable development.