Masked Booby

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

Scientific Name: Sula dactylatra

Malay Name: Angsa-Laut Paruh Kuning

Chinese Name: 蓝脸鲣鸟

Range: A pelagic species, breeding and wintering in tropical waters from 30 degrees north of the equator to 30 degrees south of the equator.

Taxonomy: Polytypic. Subspecies are: dactylatra, melanops, tasmani, personata.

Local Subspecies: personata

Size: 74-86cm

Identification: All white Booby with yellow bill (dull yellow in females and immature birds) with black primaries and secondaries. Face blue-black. Immatures with brown upperparts and underwings, and a white collar. From Red-footed Booby of all ages by greyish-yellow feet instead of red. From immature Brown Booby by white collar.

Similar looking species: Red-footed Booby, Brown Booby

Habitat: Open seas and rarely coastal waters.

Behaviour/Ecology: Strong flyer that prefers to hunt in areas of deep sea; generally not seen from the coast except when breding.

Local Status: Very rare visitor

Conservation Status: Least Concern (BirdLife International 2018)

Past records in our database:

Showing only accepted records. Note that records currently under review are also not displayed, and the list may not be a full list of records of this species in Singapore. For more details, check the database here.


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

Eaton, J. A., van Balen, S., Brickle, N. W., & Rheindt, F. E. (2021). Birds of the Indonesian Archipelago: Greater Sundas and Wallacea (Second Edition). Lynx Edicions, Barcelona.

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