Vietnam is home to one of the richest but most poorly known avifaunas of any Southeast Asian country, with a number of endemic, near-endemic, and highly threatened species found there. As a matter of fact, no other mainland Southeast Asian country can boast as many endemics as Vietnam. Although intense agriculture, population pressures, and the long era of strife in this small country have taken their toll on the native wildlife and habitat, several fine reserves and national parks dot the length of the country and shelter some of Southeast Asia's rarest birds and mammals, including several species new to science. Figures for the total number of bird species recorded in the country range around 870 species. The high bird species richness in Vietnam can be attributed to the wide latitudinal and elevational variation present within the country, which has led to the development of a wide range of habitat types.