Brown Booby

This species is defined as a Review Species . Please submit your records of this species via our record submission page .

Scientific Name: Sula leucogaster

Malay Name: Angsa-Laut Biasa

Chinese Name: 褐鲣鸟

Range: Found from tropical and subtropical Indian, Pacific and Atlantic Oceans and wanders widely outside breeding seasons to Indian subcontinent and Southeast Asia

Taxonomy: Polytypic. Subspecies are: leucogaster, brewsteri, etesiaca, plotus.

Local Subspecies: plotus

Size: 73-83 cm

Identification: Adult has distinctive dark chocolate-brown plumage with contrasting white lower breast to vent and mostly white underwing-coverts. Female is slight larger than male. Juvenile has somewhat paler brown plumage and washed dusky-brownish lower breast.

Similar looking species: Red-footed Booby, Masked Booby

Habitat: Open seas and sometimes coastal waters.

Behaviour/Ecology: More regularly sighted over shallow inshore waters than other Booby species.

Local Status: Very rare visitor

Conservation Status: Least Concern (BirdLife International 2018)

Past records in our database:

Showing only accepted records. Records currently under review are also not displayed. For a full list, click here.

Migrant bar chart (see more bar charts):


BirdLife International. (2018). Sula leucogaster. The IUCN Red List of Threatened Species 2018. Accessed on 1 January 2023

Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.