Hazel grouse lifespan and age in human years
Longest recorded 7.2 years
🏆 The longest-lived hazel grouse on record reached 7.2 years in the wild.
Hazel grouse (Tetrastes bonasia). The oldest known individual lived 7.2 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.
- Reaches adulthood at about 12 months
- Adult weight about 429 g
How old in human years?
Age
Hazel grouse age chart in human years
Shaded rows are equivalent to human age 60+.
| Hazel grouse | Human age | Stage |
|---|---|---|
| 1 yr | 18 | Teen |
| 2 yr | 35 | Adult |
| 3 yr | 51 | Middle age |
| 4 yr | 67 | Senior |
| 5 yr | 84 | Elderly |
| 6 yr | 100 | Elderly |
| 7 yr | 117 | Elderly |
| 8 yr | 133 | Elderly |
| 9 yr | 150 | Elderly |
Hazel grouse profile
| Classification | Aves > Galliformes > Phasianidae |
|---|---|
| Scientific name | Tetrastes bonasia |
| Adult weight | about 4.3e+02 g |
| Age of maturity | 12 months |
| Longest recorded | 7.2 years (wild) |
Sources
How we convert ages: method.
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