Alfather employ’s two ravens to fly over Midgard (the world of humans) to gather information for him. He named them Hugin (from Old Norse “thought”) and Munin (Old Norse “memory”).
Some facts about ravens ..
…ravens are actually rather remarkable animals. These sleek, black birds are excellent and acrobatic fliers on par with falcons and hawks. Such aerial skills are on display during breeding season, when exciting mating rituals include an elaborate dance of chases, dives, and rolls.
These intelligent birds were honored by Native Americans and often portrayed as sly pranksters for their playful nature.
Known as scavengers, ravens are also effective hunters that sometimes use cooperative techniques. Teams of ravens have been known to hunt down game too large for a single bird. They also prey on eggs and nestlings of other birds, such as coastal seabirds, as well as rodents, grains, worms, and insects. Ravens do dine on carrion and sometimes on human garbage. – National Geographic