AnAge entry for Molothrus ater

Classification (HAGRID: 01635)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Aves (Taxon entry)
            Order: Passeriformes
                Family: Icteridae
                    Genus: Molothrus
Species
Molothrus ater
Common name
Brown-headed cowbird

Lifespan, ageing, and relevant traits

IMR
0.45/year
MRDT
Not yet available
Maximum longevity
16.9 years (wild)
Source
ref. 577
Sample size
Medium
Data quality
Acceptable
Observations

IMR was calculated from demographic data in the wild. Females may lay up to 40 eggs in a season [0437].

Life history traits (averages)

Female sexual maturity
365 days
Male sexual maturity
365 days
Incubation
11 days
Clutch size
(oviparous)
Clutches per year
1
Weight at hatching
2.22 g
Adult weight
38.1 g
Postnatal growth rate
0.576 days-1 (from logistic function)

Metabolism

Typical body temperature
Not yet available
Basal metabolic rate
0.6315 W
Body mass
42.5 g
Metabolic rate per body mass
0.014859 W/g

References

External Resources

Integrated Taxonomic Information System
ITIS 179112
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 84834
Entrez
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Ageing Literature
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Internet
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