Greater Crested Tern vs Nelson s Antelope Squirrel

Thalasseus bergii compared with Ammospermophilus nelsoni

Key Differences

• Greater Crested Tern is Least Concern while Nelson s Antelope Squirrel is Endangered.

Taxonomic Classification

Rank	Greater Crested Tern	Nelson s Antelope Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Rodentia (Rodents)
Family	Laridae	Sciuridae (Squirrels)
Genus	Thalasseus	Ammospermophilus
Species	Thalasseus bergii	Ammospermophilus nelsoni

Evolutionary Relationship

Greater Crested Tern and Nelson s Antelope Squirrel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Greater Crested Tern

LC — Least Concern

Nelson s Antelope Squirrel

EN — Endangered

Physical Characteristics

Attribute	Greater Crested Tern	Nelson s Antelope Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Greater Crested Tern

Habitat

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

Range

Found in Norway.

Nelson s Antelope Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.