Canvasback vs Common pochard
The canvasback is heavier: 1.2 kg against 823 g for the common pochard, about 46% more.
Photo: Frank Schulenburg · CC BY-SA 3.0 · Wikimedia Commons
Photo: Tony Hisgett from Birmingham, UK · CC BY 2.0 · Wikimedia Commons
What is the difference between a canvasback and a common pochard?
Each point below is worked out from a pair of recorded values.
- The canvasback is heavier: 1.2 kg against 823 g for the common pochard, about 46% more.
- The common pochard is longer-lived: 22.7 years against 22.4 years for the canvasback, about 1% longer.
- Both belong to the genus Aythya, so they are close relatives.
- The canvasback is listed as Least Concern on the IUCN Red List; the common pochard is Vulnerable.
Side by side
| Canvasback | Common pochard | |
|---|---|---|
| Scientific name | Aythya valisineria | Aythya ferina |
| Family | Anatidae | Anatidae |
| Order | Anseriformes | Anseriformes |
| Weight | 1.17 kg – 1.25 kg | 823 g – 937 g |
| Length | Not recorded | Not recorded |
| Lifespan | 22.4 years | 22.7 years |
| Main food | Not recorded | Not recorded |
| Habitat | wetland | wetland |
| Conservation status | Least Concern | Vulnerable |
| 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: CanvasbackFull record: Common pochardCompare other animals