Ruff vs Western sandpiper
The ruff is heavier: 131.7 g against 27.8 g for the western sandpiper, about 4.7 times the weight.

Photo: Wald1siedel · CC BY-SA 4.0 · Wikimedia Commons

Photo: Alan D. Wilson · CC BY-SA 3.0 · Wikimedia Commons
What is the difference between a ruff and a western sandpiper?
Each point below is worked out from a pair of recorded values.
- The ruff is heavier: 131.7 g against 27.8 g for the western sandpiper, about 4.7 times the weight.
- The ruff is longer-lived: 13.9 years against 9.18 years for the western sandpiper, about 51% 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
| Ruff | Western sandpiper | |
|---|---|---|
| Scientific name | Calidris pugnax | Calidris mauri |
| Family | Scolopacidae | Scolopacidae |
| Order | Charadriiformes | Charadriiformes |
| Weight | 102 g – 180 g | 26.6 g – 31 g |
| Length | Not recorded | Not recorded |
| Lifespan | 13.9 years | 9.18 years |
| Main food | Not recorded | Not recorded |
| Habitat | wetland | shrubland |
| 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: RuffFull record: Western sandpiperCompare other animals