There are more and more ani*ls endangered nowadays, birds are no exceptional. Many kinds of birds *d out in the past decades and *ny other kinds of birds are in peril of extinction because of hu*n’s destruction of their natural habitat. As the economy develops, hu*ns 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 *ke 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 *de 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.