 The red warbler is currently rated as a species of least concern by the International Union for the Conservation of Nature . Though there is evidence that its numbers are decreasing , the decline has not been precipitous , and the population remains quite large , with estimates ranging from 50 @,@ 000 to 499 @,@ 999 birds . The forested areas in which it occurs , however , include some of the most threatened habitats in Mexico , with logging , agricultural expansion , firewood gathering , road building , tourist development , overgrazing and intensive urbanization among the many things contributing to the destruction of the forests . There is some evidence that selective logging in pine forests may actually favor this species , which prefers more open , sunlit areas in which to breed . 
