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AnAge entry for Bubo virginianus

Classification (HAGRID: 02079)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Aves (Taxon entry)
            Order: Strigiformes
                Family: Strigidae
                    Genus: Bubo
SpeciesBubo virginianus
Common nameGreat horned owl

Lifespan, ageing, and relevant traits

Maximum longevity29 years (wild)
Sourceref. 427
Sample sizemedium
Data qualityacceptable
Observations

Though sexual maturity may be reached at earlier ages, breeding normally does not occur before age 2. The record longevity in the wild is 13 years [0437].

Life history traits (averages)

Female sexual maturity730 days
Male sexual maturity730 days
Incubation27 days
Clutch size3 (oviparous)
Clutches per year1
Weight at hatching34.7 g
Adult weight1,191 g
Postnatal growth rate0.138 days-1 (from logistic function)

Metabolism

Typical body temperatureNot yet available
Basal metabolic rate5.2442 W
Body mass1450.0 g
Metabolic rate per body mass0.003617 W/g

References
[0820] John Dunning (2008), CRC Handbook of Avian Body Masses
[0435] McKechnie and Wolf (2004), The allometry of avian basal metabolic rate: good predictions need good data, PubMed
[0732] Starck and Ricklefs (1998), Avian growth rate data set
[0444] John Terres (1980), The Audubon Society Encyclopedia of North American Birds
[0427] BBL - Longevity Records of North American Birds
[0437] FEIS by the USDA Forest Service
[0445] The Birds of North America Online

External resources

Integrated Taxonomic Information SystemITIS 177884
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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