They’re disappearing before our eyes: More than half of U.S. bird species are in decline. And of those, 70 species—including the beloved Rufous Hummingbird—have lost 50% or more of their populations in the past 50 years, and are on track to lose another half or more in the next half-century.

Their future depends on you and what we can do together now. Will you do your best for birds in this time of crisis? Be one of the 40 bird lovers we’re depending on to start your monthly gift before midnight tonight and, thanks to a group of generous donors, you’ll help unlock $5,000 more for the birds you love.