Measuring about 3 inches long and weighing about one-tenth of an ounce, the Calliope Hummingbird is the smallest bird in North America. Despite its size, this beloved bird is able to survive cold summer nights at high elevations in the northern Rockies, and some migrate every year from Canada all the way to southern Mexico. But this tiny hummingbird is facing a big problem: If climate change continues unchecked, 67% of their current breeding range could be lost.

There’s still time to give many climate-threatened birds a safer future—and there’s no better time than the eve of Giving Tuesday to give birds the help they so desperately need. To power our work for birds with reliable support, we’ve set an ambitious goal of 1,000 new monthly donors by Giving Tuesday. Will you make a monthly gift today while your first gift could be matched, thanks to a group of generous donors? Please be one of the 155 caring friends we’re counting on to join us before midnight tomorrow to keep pace on our goal and help bring birds back.