Brown Booby vs Gray Flying Fox

Sula leucogaster compared with Pteropus griseus

Key Differences

• Brown Booby is Least Concern while Gray Flying Fox is Vulnerable.

Taxonomic Classification

Rank	Brown Booby	Gray Flying Fox
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Suliformes (Suliformes)	Chiroptera (Bats)
Family	Sulidae	Pteropodidae (Fruit Bats)
Genus	Sula	Pteropus (Flying Foxes)
Species	Sula leucogaster	Pteropus griseus

Evolutionary Relationship

Brown Booby and Gray Flying Fox share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Booby

LC — Least Concern

Gray Flying Fox

VU — Vulnerable

Physical Characteristics

Attribute	Brown Booby	Gray Flying Fox
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Booby

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Europe (Denmark, Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Gray Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Brown Booby

Brown Booby (Sula leucogaster) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.