Great Blue/Cocoi Heron vs hydroid

Ardea herodias compared with Obelia longissima

Key Differences

• Great Blue/Cocoi Heron is Least Concern while hydroid is Not Evaluated.

Taxonomic Classification

Rank	Great Blue/Cocoi Heron	hydroid
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Cnidaria (Cnidarians)
Class	Aves (Birds)	Hydrozoa (Hydrozoa)
Order	Pelecaniformes (Pelecaniformes)	Leptothecata (Leptothecata)
Family	Ardeidae	Campanulariidae
Genus	Ardea	Obelia
Species	Ardea herodias	Obelia longissima

Evolutionary Relationship

Great Blue/Cocoi Heron and hydroid share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Great Blue/Cocoi Heron

LC — Least Concern

hydroid

NE — Not Evaluated

Physical Characteristics

Attribute	Great Blue/Cocoi Heron	hydroid
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).

hydroid

Habitat

Native to Europe and North America and Oceania, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (Australia, New Zealand), and South America (Argentina).

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇺🇸 United States