More than half of U.S. bird species are in decline. And the news is even worse for the Rufous Hummingbird and 69 other species that have been identified as birds at a “tipping point”: They’ve lost 50% or more of their populations in the past 50 years and are facing the same in the coming decades. Without swift conservation action, these birds are on track for a devastating future.

But there’s still time to give birds the protection they need. Bring birds back from the brink with your urgently-needed annual donation. The first gift of your new annual sustaining gift will be matched by a group of generous donors, up to $75,000. But hurry! This special offer ends at midnight tonight.