This steel gray-and-yellow songbird was covered by the original Endangered Species Act, and in the 1980s there were fewer than 200 breeding pairs left in the world. Kirtland's Warblers breed in young jack pine forests, almost exclusively in the Lower Peninsula of Michigan, and with decades-long efforts by federal, state and nonprofit agencies, they've made a comeback to more than 2,000 pairs -- twice the recovery target set by the U.S. Fish & Wildlife Service. Proceeds from this patch will support the American Bird Conservancy as it works to expand its habitat -- both in the U.S. and its wintering grounds in The Bahamas -- and plan for its future off the Endangered Species list.