Hurleur du Maranhao vs Royal Tern

Alouatta ululata compared with Thalasseus maximus

Key Differences

• Hurleur du Maranhao is Endangered while Royal Tern is Least Concern.

Taxonomic Classification

Rank	Hurleur du Maranhao	Royal Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Charadriiformes (Charadriiformes)
Family	Atelidae	Laridae
Genus	Alouatta	Thalasseus
Species	Alouatta ululata	Thalasseus maximus

Evolutionary Relationship

Hurleur du Maranhao and Royal Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hurleur du Maranhao

EN — Endangered

Royal Tern

LC — Least Concern

Physical Characteristics

Attribute	Hurleur du Maranhao	Royal Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hurleur du Maranhao

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Royal Tern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, Sweden, and Venezuela.

Royal Tern

Royal Tern (Thalasseus maximus) 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.