Rock sandpiper vs Ruff
The ruff is heavier: 131.7 g against 81.3 g for the rock sandpiper, about 62% more.
Photo: Alan D. Wilson · CC BY-SA 3.0 · Wikimedia Commons
Photo: Wald1siedel · CC BY-SA 4.0 · Wikimedia Commons
What is the difference between a rock sandpiper and a ruff?
Each point below is worked out from a pair of recorded values.
- The ruff is heavier: 131.7 g against 81.3 g for the rock sandpiper, about 62% more.
- The ruff is longer-lived: 13.9 years against 7.33 years for the rock sandpiper, about 90% longer.
- Both belong to the genus Calidris, so they are close relatives.
- Both are listed as Least Concern on the IUCN Red List.
Side by side
| Rock sandpiper | Ruff | |
|---|---|---|
| Scientific name | Calidris ptilocnemis | Calidris pugnax |
| Family | Scolopacidae | Scolopacidae |
| Order | Charadriiformes | Charadriiformes |
| Weight | 76.6 g – 84.3 g | 102 g – 180 g |
| Length | Not recorded | Not recorded |
| Lifespan | 7.33 years | 13.9 years |
| Main food | Not recorded | Not recorded |
| Habitat | grassland | wetland |
| 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: Rock sandpiperFull record: RuffCompare other animals