Corvus corax; the raven is the only breeding corvid on Iceland. Others, like hooded crows, rooks and jackdaws visit Iceland outside the breeding season but rarely breed. The raven though, breeds commonly in all regions of Iceland. It prefers to breed on cliffs and start early (late March - April). The birds form life-long mating bonds. Breeding birds generally stay in their breeding areas, whereas non-mated birds tend to form groups near urban regions where food is plenty.