Some 75 kinds of foreign birds have settled down in Taiwan, threatening the island's native species, DPA quoted the Council of Agriculture as warning today. The council issued the warning after field research showed that 75 species of foreign birds have begun to reproduce in Taiwan. The foreign birds come mostly from South-East Asian countries like the Philippines and also from China and India. They are almost half the number of Taiwan's native bird species, which number 154. "Some people may think that more birds means our ecology has improved, but the invasion of foreign birds is dangerous because these smuggled birds were not quarantined. They could bring in diseases and eat up the foods needed by local species," council researcher Fan Meng-wen told a news conference.