Rarest birds of the World: chatham Island Shag (Phalacrocorax onslowi)

This species occupies a very area on the Chatham Islands, New Zealand. The past 10 years, surveys indicate that the species is in decline. In 2011 the population was estimated to be about 1000 individuals. The breeding colonies suffered much from agricultural activities and feral mammals. These colonial ground breeding species trample their eggs while […]

Rarest birds of the World: Ridgway’s Hawk (Buteo ridgwayi)

This species is considered Critically Endangered because it has an extremely small and fragmented population, which continues to decline. Only effective protection of Los Haitises National Park and captive breeding and release are likely to save this species from extinction. 36-41 cm. Medium-sized, compact hawk. Above brownish grey, tail dark brown, with 3 faint imperfect […]