Brown Booby vs Nazca Booby

Sula leucogaster compared with Sula granti

Key Differences

• Brown Booby is Least Concern while Nazca Booby is Vulnerable.

Taxonomic Classification

Rank	Brown Booby	Nazca Booby
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Suliformes (Suliformes)	Suliformes (Suliformes)
Family same	Sulidae	Sulidae
Genus same	Sula	Sula
Species	Sula leucogaster	Sula granti

Evolutionary Relationship

Brown Booby and Nazca Booby share a common ancestor at the Genus level: Sula.

Conservation Status

Brown Booby

LC — Least Concern

Nazca Booby

VU — Vulnerable

Physical Characteristics

Attribute	Brown Booby	Nazca Booby
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).

Nazca Booby

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway