Climate Threatens Birds From Tropics to Mountaintops

Climate Threatens Birds From Tropics to Mountaintops - NYTimes.com

Over the past two decades, an increasing number of settlers who have moved here to farm have impinged on bird habitats and reduced bird populations by cutting down forests and turning grasslands into fields. Now the early effects of global warming and other climate changes have helped send the populations of many local mountain species into a steep downward spiral, from which many experts say they will never recover.