Except for a few short-term population surveys, there has been virtually no biological research done on Taiwan's more than 30 varieties of local or migratory birds of prey. "How high is their rate of reproduction?
台灣卅種猛禽留鳥、候鳥，除了少數幾種做過短期的數量調查，幾乎沒有一種做過生物學研究，「它的繁殖率高低？