#19 Females differ from males in their size.
Males have a larger body and can reach 100 centimeters. The wingspan reaches 150 centimeters. The color of the feathers changes with age. The young have brownish plumage. Growing up, the feathers of birds darken, becoming black with a metallic sheen.
#20 When hunting for fish, the bird is helped by the presence of a thin long beak resembling a hook and a long neck.
When swallowing fish, it opens wide, which makes it easy to eat big specimens.