A massive intelligent crow relative — one of the smartest non-human animals known. Solves complex puzzles, uses tools, and remembers human faces.
§ Quick facts
§ Encyclopedia
The common raven or northern raven is a large all-black passerine bird. It is the most widely distributed of all corvids, found across the Northern Hemisphere. There are 11 accepted subspecies with little variation in appearance, although recent research has demonstrated significant genetic differences among populations from various regions. It is one of the two largest corvids, alongside the thick-billed raven, and is the heaviest passerine bird; at maturity, the common raven averages 63 centimetres in length and 1.47 kilograms in weight, up to 2 kg (4.4 lb) in the heaviest individuals. Although their typical lifespan is considerably shorter, common ravens can live more than 23 years in the wild. Young birds may travel in flocks but later mate for life, with each mated pair defending a territory.
Source: Wikipedia — Common raven Licensed under CC BY-SA 4.0
§ Identification
Field marks. Massive all-black bird with shaggy throat feathers, wedge-shaped tail, large heavy bill.
Similar species. American Crow (smaller, fan-shaped tail). Chihuahuan Raven (very similar; mostly southwestern).
Voice. Wide variety: deep croaks, knocks, gurgles, even mimicry.
§ Diet & behavior
Diet. Omnivorous: carrion, insects, small mammals, eggs, fruit, garbage, virtually anything.
Behavior. Among the smartest non-human animals. Forms long-term pair bonds. Solves complex puzzles requiring planning ahead.
§ Range
Across most of North America
§ Habitat
Diverse: forests, deserts, mountains, suburbs
§ Threats
Persecution from misunderstanding, vehicle strikes, pesticide bioaccumulation.
§ Conservation status
According to the IUCN Red List, the common raven is currently classified as Least Concern.
§ What helps
Don't kill ravens. Appreciate their intelligence. Tolerate scavenging behavior.
§ Further reading
- Wikipedia — Common raven
- www.allaboutbirds.org — authoritative profile of Corvus corax
- IUCN Red List · taxon 22706068
- iNaturalist · taxon 13830
- eBird · comrav
- GBIF occurrence records
- Encyclopedia of Life — Corvus corax
§ Sources cited
- Cornell Lab — All About Birds
- National Audubon Society
- iNaturalist
- IUCN Red List 2017