Audubon has published their list of the Top 10 Most Endangered Birds. I assume the list is for North American birds as there are some very rare New Zealand birds not on the list.
At least one of the birds, the Ivory Billed Woodpecker my even be extinct. There are mixed opinions on the evidence of some remaining Ivory-billed. You can read some of the controversy at another blog I often refer to:Living the Scientific Life (Scientist, Interrupted)
Audubon has also posted some facts and myths about the endangered species act on their link above. As you may have heard, Congress is trying to decrease the protections under the ESA. If this infuriates you as much as it does me, please write to your senators or Send an Email. I am also disgusted that Idaho's own Senator Crapo has authored one of the bills.