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Northern mockingbird

Northern mockingbird lifespan and age in human years

Longest recorded 20 years

🏆 The longest-lived northern mockingbird on record reached 20 years in the wild.

Northern mockingbird (Mimus polyglottos). The oldest known individual lived 20 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.

How old in human years?

Age

Northern mockingbird age chart in human years

Shaded rows are equivalent to human age 60+.

Northern mockingbirdHuman ageStage
1 yr18Teen
2 yr23Adult
3 yr29Adult
4 yr34Adult
5 yr39Adult
6 yr45Middle age
7 yr50Middle age
8 yr56Middle age
9 yr61Senior
10 yr66Senior
11 yr72Senior
12 yr77Elderly
13 yr82Elderly
14 yr88Elderly
15 yr93Elderly
16 yr99Elderly
17 yr104Elderly
18 yr109Elderly
19 yr115Elderly
20 yr120Elderly
21 yr125Elderly
22 yr131Elderly
23 yr136Elderly
24 yr141Elderly
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Northern mockingbird profile

ClassificationAves > Passeriformes > Mimidae
Scientific nameMimus polyglottos
Adult weightabout 53 g
Age of maturity12 months
Incubationabout 12 days
Litter / clutch size4
Longest recorded20 years (wild)

Sources

How we convert ages: method.

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