White-bellied heron This heron is classified as Critically Endangered because it has an extremely small and rapidly declining population. This decline is projected to increase in the near future as a result of the loss and degradation of lowland forest and wetlands, and through direct exploitation and disturbance.
At number 12 on the list, the northern bald ibis almost went extinct before heavily-managed conservation efforts have brought it back from the brink. Today a few hundred animals survive. Photo by: Heather Burgess.
Greater Adjutant, Leptoptilos dubius. It's range is the Indian Subcontinent and South Asia. The global population is estimated at 800 to 1,200 mature individuals. Despite conservation actions, this number is still thought to be declining and the Greater Adjutant is sliding towards extinction.