Object Details Author World Conference on Birds of Prey and Owls (5th : : 1998 : Johannesburg, South Africa) Chancellor, R. D (Robin D.) Meyburg, B.-U (Bernd-U.) World Working Group on Birds of Prey ...

For instance, as moa, a keystone species, were hunted to extinction, other bird species followed, such as their main predator, the Haast's eagle (Hieraaetus moorei) (Worthy and Holdaway, 2002; ...