Atlantic Gray Seal vs pato-casarca

Halichoerus grypus compared with Tadorna ferruginea

Key Differences

• Atlantic Gray Seal is Vulnerable while pato-casarca is Not Evaluated.

Taxonomic Classification

Rank	Atlantic Gray Seal	pato-casarca
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Aves (ave)
Order	Pinnipedia (Seals & Sea Lions)	Anseriformes (Anseriformes)
Family	Phocidae (True Seals)	Anatidae
Genus	Halichoerus	Tadorna
Species	Halichoerus grypus	Tadorna ferruginea

Evolutionary Relationship

Atlantic Gray Seal and pato-casarca share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

pato-casarca

NE — Not Evaluated

Physical Characteristics

Attribute	Atlantic Gray Seal	pato-casarca
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Gray Seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

pato-casarca

Habitat

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

Range

Widely distributed across Asia (Israel, Taiwan), Europe (19 countries), and North America (United States).

Atlantic Gray Seal

The Atlantic Gray Seal (Halichoerus grypus) is a species in the genus Halichoerus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

pato-casarca

O pato-ferrugem (Tadorna ferruginea) esta classificado como Nao Avaliado (NE) na Lista Vermelha da UICN. Ainda nao foi avaliado com os criterios da Lista Vermelha da UICN. Seu estado de conservacao esta por ser determinado.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden