A prehistoric-looking stork as tall as an adult human and an eagle that preys on monkeys and flying lemurs are among the world's 100 most Evolutionary Distinct and Globally Endangered (Edge) birds, according to a list released by the Zoological Society of London (ZSL) and Yale University.

Edge birds represent millions of years of unique evolutionary history, said zoo management.

Carly Waterman, Edge programme manager at ZSL said: "Half of the 100 highest-ranked Edge bird species are receiving little or no conservation attention. We lament the extinction of the dodo, but without action we stand to lose one of its closest relatives, the tooth-billed pigeon or 'little dodo', and many other extraordinary birds."

See the full list of 100 birds here. In this gallery we highlight 10 of the most threatened birds (number indicates Edge rank).