Yes, birds again...
"One of the world’s largest species of bird is on the brink of extinction according to the 2011 IUCN Red List of Threatened Species™ for birds, just released by BirdLife International, an IUCN Red List partner. "
Read the complete article about almost extinct birds and some of the successes with previously critically endangered birds:
IUCN - Big birds lose out in a crowded world