Birds are indispensable members of nature and play an important role in maintaining the balance of nature. So we have to protect the birds. Biologically speaking: the protection of birds is conducive to the protection of species. Because when an organism goes extinct, it implicates members of its food chain and the environment around it. Bird protection starts with the environment where birds live. So, what should we do to protect the birds living in the zoo’s aviary? What are the risks of heavy metal to birds?What kind of metal is safe for birds? That are good questions, and we’ll […]