Brown Booby vs Irrawaddy dolphin

Sula leucogaster compared with Orcaella brevirostris

Key Differences

• Brown Booby is Least Concern while Irrawaddy dolphin is Endangered.

Taxonomic Classification

Rank	Brown Booby	Irrawaddy dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Suliformes (Suliformes)	Cetacea (Whales & Dolphins)
Family	Sulidae	Delphinidae (Oceanic Dolphins)
Genus	Sula	Orcaella
Species	Sula leucogaster	Orcaella brevirostris

Evolutionary Relationship

Brown Booby and Irrawaddy dolphin share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Booby

LC — Least Concern

Irrawaddy dolphin

EN — Endangered

Physical Characteristics

Attribute	Brown Booby	Irrawaddy dolphin
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).

Irrawaddy dolphin

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.