Northern Rockhopper Penguins are small, aggressive birds known for hopping over rocks, and they have distinctive yellow "eyebrows" and red eyes. They are monogamous, often lay two eggs but only one survives, As well as giving loud cries, these birds shake their yellow eyebrows to attract a mate. Nests are usually small scrapes lined with vegetation. Parents take turn looking after the egg, both not being afraid to peck at anything that strays too close.They are excellent divers, capable of reach