Discover strange facts about prehistoric birds: terror birds, elephant birds, moas, Argentavis, Archaeopteryx, and the giant feathered predators of the...

Expert-written guide to prehistoric birds covering terror birds, elephant birds, moas, Archaeopteryx, Argentavis, the dodo, great auk, and Carolina parakeet. Explore the largest, tallest, and most fearsome birds that ever lived.

Everything about the terror bird: size, habitat, hunting, skull anatomy, extinction, and the strange facts that made Phorusrhacidae the apex predator of South America for 60 million years.

Everything about the moa: size, habitat, diet, extinction, ancient DNA, and the strange facts that made Dinornithidae the only bird lineage with no wings at all and the dominant herbivore of prehistoric New Zealand.

Everything about Haast's eagle: size, prey, hunting, evolution, Maori pouakai tradition, and the strange facts that made Hieraaetus moorei the largest eagle ever known and the only raptor confirmed to have preyed on humans.

Everything about Argentavis magnificens: size, wingspan, thermal soaring, diet, Miocene habitat, discovery in Argentina, and the strange facts that made this teratorn the largest flying bird ever known.