Fish crow vs Rook
The rook is heavier: 452.1 g against 284.6 g for the fish crow, about 59% more.
Photo: Rhododendrites · CC BY-SA 4.0 · Wikimedia Commons
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Photo: Brian Snelson from Hockley, Essex, England · CC BY 2.0 · Wikimedia Commons
What is the difference between a fish crow and a rook?
Each point below is worked out from a pair of recorded values.
- The rook is heavier: 452.1 g against 284.6 g for the fish crow, about 59% more.
- The rook is longer-lived: 19.9 years against 14.5 years for the fish crow, about 37% longer.
- Both belong to the genus Corvus, so they are close relatives.
- Both are listed as Least Concern on the IUCN Red List.
Side by side
| Fish crow | Rook | |
|---|---|---|
| Scientific name | Corvus ossifragus | Corvus frugilegus |
| Family | Corvidae | Corvidae |
| Order | Passeriformes | Passeriformes |
| Weight | 270 g – 299.9 g | 418 g – 489 g |
| Length | Not recorded | Not recorded |
| Lifespan | 14.5 years | 19.9 years |
| Main food | Not recorded | Not recorded |
| Habitat | coastal | grassland |
| Conservation status | Least Concern | Least Concern |
| Countries recorded | Not recorded | Not recorded |
A scale drawing needs a recorded length for both animals; only weights are on record for this pair.
Full record: Fish crowFull record: RookCompare other animals