Great Blue/Cocoi Heron vs St John's Rollandia

Ardea herodias compared with Cyanea spec

Key Differences

• Great Blue/Cocoi Heron is Least Concern while St John's Rollandia is Critically Endangered.

Taxonomic Classification

Rank	Great Blue/Cocoi Heron	St John's Rollandia
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Aves (Birds)	Scyphozoa (Scyphozoa)
Order	Pelecaniformes (Pelecaniformes)	Semaeostomeae (Semaeostomeae)
Family	Ardeidae	Cyaneidae
Genus	Ardea	Cyanea
Species	Ardea herodias	Cyanea spec

Evolutionary Relationship

Great Blue/Cocoi Heron and St John's Rollandia share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Great Blue/Cocoi Heron

LC — Least Concern

St John's Rollandia

CR — Critically Endangered

Physical Characteristics

Attribute	Great Blue/Cocoi Heron	St John's Rollandia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Great Blue/Cocoi Heron

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

St John's Rollandia

Great Blue/Cocoi Heron

Great Blue/Cocoi Heron (Ardea herodias) 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.