Comparison · Field Guide
Raven vs Rook
[science] Key marks: Rooks have a pale, bare face and grey bill base (adults). Ravens have an entirely black face and heavy dark bill. Size: ravens are much larger. Flight: Rooks have notably floppy, "fingered" wingtips; ravens soar on flatter wings. Voice: Rook is a "kaah", raven is a deep croak.
Side-by-Side
| Feature | Common Raven Corvus corax | Rook Corvus frugilegus |
|---|---|---|
| Length | 56–69 cm | 44–47 cm |
| Wingspan | 120–150 cm | 81–99 cm |
| Weight | 689–1,625 g | 280–490 g |
| Face / bill | All black; heavy arched bill | Pale bare face; grey bill base (adult) |
| Tail | Wedge-shaped | Rounded |
| Thigh feathers | Smooth | Loose, baggy ("plus-fours") |
| Voice | Deep croak "kronk" | Raucous "kaah" |
| Breeding | Solitary pairs | Colonial (rookeries in tall trees) |
| Habitat | Upland, coast, wild country | Lowland farmland, parkland, village edges |
Source: Madge & Burn (1994).1
The Easiest Distinguishing Mark
An adult Rook seen up close is unmistakeable: the bare pale skin around the base of the bill and the greyish bill base are unlike anything on a raven. Even in poor light at distance, a Rook's proportions — slimmer build, rounder tail, floppy wingtips — differ from the raven's solid, broad-winged shape.
Frequently Asked Questions
Can you confuse a raven with a Rook?
At distance, both are large black corvids, but up close they are very different. Rooks have a distinctive pale, almost whitish face and grey bill base (adults) — ravens have an entirely black face and heavy dark bill. Rooks also have notably "baggy" thigh feathers and a more rounded, floppy-wingtipped flight profile.
Are Rooks bigger than crows?
Rooks are roughly similar in size to Carrion Crows (44–47 cm), slightly smaller and more slender-billed. Neither approaches the raven in size.
Sources
- Madge, S. & Burn, H. (1994). Crows and Jays. Christopher Helm. — all measurements and field marks.
[science] field-guide data