The Steller’s Sea Eagle (Haliaeetus pelagicus) is the heaviest and one of the most fierce raptors on our planet, one that I spot and photograph during my annual Hokkaido birding photo workshop tours; their plumage is blackish brown-black all over except on the shoulders, rump, tail, thighs, and forehead, which are white. These raptors have a razor-sharp, wickedly hooked huge yellow bill that is the largest of all eagles. The Steller’s Sea Eagles are huge, on average, the heaviest raptor on our planet, weighing up to and over 10 kg (22 pounds). They are also tall, measuring up to 94 cm (3 ft), sometimes even taller, with a massive wingspan of up to 250 cm (8 - 9 ft).