Rock ptarmigan lifespan and age in human years
Longest recorded 11.7 years
🏆 The longest-lived rock ptarmigan on record reached 11.7 years in the wild.
Rock ptarmigan (Lagopus muta). The oldest known individual lived 11.7 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 536 g
How old in human years?
Age
Rock ptarmigan age chart in human years
Shaded rows are equivalent to human age 60+.
| Rock ptarmigan | Human age | Stage |
|---|---|---|
| 1 yr | 18 | Teen |
| 2 yr | 28 | Adult |
| 3 yr | 37 | Adult |
| 4 yr | 47 | Middle age |
| 5 yr | 56 | Middle age |
| 6 yr | 66 | Senior |
| 7 yr | 75 | Elderly |
| 8 yr | 85 | Elderly |
| 9 yr | 94 | Elderly |
| 10 yr | 104 | Elderly |
| 11 yr | 113 | Elderly |
| 12 yr | 123 | Elderly |
| 13 yr | 132 | Elderly |
| 14 yr | 142 | Elderly |
Rock ptarmigan profile
| Classification | Aves > Galliformes > Phasianidae |
|---|---|
| Scientific name | Lagopus muta |
| Adult weight | about 5.4e+02 g |
| Age of maturity | 12 months |
| Longest recorded | 11.7 years (wild) |
Sources
How we convert ages: method.
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