Cabot's tern vs Royal tern
The royal tern is heavier: 415.3 g against 237 g for the cabot's tern, about 75% more.
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Photo: EyeLoveBirds from Vancouver, Canada · CC BY-SA 2.0 · Wikimedia Commons
What is the difference between a cabot's tern and a royal tern?
Each point below is worked out from a pair of recorded values.
- The royal tern is heavier: 415.3 g against 237 g for the cabot's tern, about 75% more.
- The cabot's tern is longer-lived: 27.2 years against 24.6 years for the royal tern, about 10% longer.
- Both belong to the genus Thalasseus, so they are close relatives.
Side by side
| Cabot's tern | Royal tern | |
|---|---|---|
| Scientific name | Thalasseus acuflavidus | Thalasseus maximus |
| Family | Laridae | Laridae |
| Order | Charadriiformes | Charadriiformes |
| Weight | 208 g – 296 g | 385 g – 464 g |
| Length | Not recorded | Not recorded |
| Lifespan | 27.2 years | 24.6 years |
| Main food | Not recorded | Not recorded |
| Habitat | Not recorded | marine |
| Conservation status | Not recorded | 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: Cabot's ternFull record: Royal ternCompare other animals