American harpy eagle is an active carnivore and is also considered to be the apex predator. they have no natural predators and adults are at the top of the food chain.Huge, iconic eagle of the rainforests of central and south america, the harpy eagle (harpia harpyja) is one of the largest and most powerful birds of prey in the world . The lesser spotted eagle has mainly brown plumage with the head darker white at base of uppertail (photo ). similar to greater spotted eagle.easy to confuse lesser spotted eagle and greater spotted eagle. American bald eagle information bald eagle (haliaeetus leucocephalus), our national bird, is the only eagle unique to north america. the bald eagle’scientific name signifies sea (halo) eagle (aeetos) with white (leukos) head.