Art illustration - Prehistoric Birds - Kelenken guillermoi: it is an extinct species of bird cariamiforme of Phorusrhacidae family or terror birds. It is the largest known predatory bird history. He lived in the Miocene, about 15 million years ago. Measured more than three meters high, its head (including peak) came to be more than 70 cm long, with the bird with the largest known skull, weighing up to 160 kilograms
