Tuesday 19 September 2023

Brown Booby (Sula leucogaster)

OTHER NAMES: N/A
Latin Etymology: Sula (Old Norse for Gannet) leucogaster ("white abdomen")

Adult male Brown Booby (subspecies S. l. leucogaster) at South Gare, Yorkshire - September 2023


Featured Subspecies: Sula leucogaster leucogaster
Weight: 1-1.3kg  /  Length: 64-74cm  /  Wingspan: 140-150cm
NO UK STATUSIUCN Red List: Least Concern

The Tees estuary would perhaps not be the first place one would seek to look for a tropical seabird, but after a number of sightings of the species around the UK in 2023, this bird decided to settle on the marker buoys surrounding the spit of South Gate to the south of the estuary. It's range is more usually equatorial, spanning the Pacific, Indian Ocean, and where this individual likely originated from the Central Atlantic. 

Related Species:
Order: Pelecaniformes
Family: Sulidae

Genus: Sula
SUBSPECIES: S. l. leucogaster, S. l. plotus, S. l. brewsteri, S. l. etesiaca

 - Sighting Locations -

UNITED KINGDOM - A very rare vagrant
 - A lingering vagrant bird seen at South Gare in September 2023 .

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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