Bird / Sula leucogaster

Brown Booby

LC

Lowest risk

Vagrant

The brown booby is a large seabird of the booby family, Sulidae, of which it is perhaps the most common and widespread species. It has a pantropical range, which overlaps with that of other booby species. The gregarious brown booby commutes and forages at low height over inshore waters. Flocks plunge-dive to take small fish, especially when these are driven near the surface by their predators. They only nest on the ground, and roost on solid objects rather than the water surface.

Range elevation
0 to 15 m
Range mass
950 to 1800 g
Average mass
1300 g
Range length
64 to 85 cm
Range wingspan
132 to 155 cm
Breeding interval
Brown boobies breed once yearly.
Breeding season
Brown booby breeding times vary across the world, with most breeding occuring from December to March, although breeding may be year-round in some areas.
Range eggs per season
1 to 3
Range time to hatching
40 to 47 days
Average time to hatching
42 days
Range fledging age
96 to 120 days
Average fledging age
100 days
Range time to independence
42 to 365 days
Average time to independence
50 days
Range age at sexual or reproductive maturity (female)
240 (low) days
Average age at sexual or reproductive maturity (female)
1278 days
Range age at sexual or reproductive maturity (male)
240 (low) days
Average age at sexual or reproductive maturity (male)
1278 days
Range lifespan
Status: wild
27.2 (high) years
Range territory size
1 to 5 m^2

Langteau, J. 2011. "Sula leucogaster" (On-line), Animal Diversity Web. Accessed November 10, 2020 at https://animaldiversity.org/accounts/Sula_leucogaster/

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