AnAge entry for Strix occidentalis

Classification (HAGRID: 02179)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Aves (Taxon entry)
            Order: Strigiformes
                Family: Strigidae
                    Genus: Strix
Species
Strix occidentalis
Common name
Spotted owl

Lifespan, ageing, and relevant traits

Maximum longevity
25 years (captivity)
Source
ref. 1
Sample size
Small
Data quality
Acceptable
Observations

Typical animals do not breed before age 3. The average longevity of these animals is about 15 years [0437]. Majority of pairs do not breed every year; some known to not breed over periods of 5-6 years [0445].

Life history traits (averages)

Female sexual maturity
365 days
Male sexual maturity
365 days
Incubation
30 days
Clutch size
2 (oviparous)
Clutches per year
Weight at hatching
Adult weight
588.7 g
Postnatal growth rate

Metabolism

Typical body temperature
Not yet available
Basal metabolic rate
2.6750 W
Body mass
571.0 g
Metabolic rate per body mass
0.004685 W/g

References

External Resources

Integrated Taxonomic Information System
ITIS 177925
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 201991
Entrez
Search all databases
Ageing Literature
Search Google Scholar or Search PubMed or Search Scirus
Images
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Internet
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