Chestnut-backed Thornbird vs Green Sea Turtle

Phacellodomus dorsalis compared with Chelonia mydas

Key Differences

• Chestnut-backed Thornbird is Near Threatened while Green Sea Turtle is Endangered.

Taxonomic Classification

Rank	Chestnut-backed Thornbird	Green Sea Turtle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Reptilia (Reptiles)
Order	Passeriformes (Songbirds)	Testudines (Turtles & Tortoises)
Family	Furnariidae	Cheloniidae (Sea Turtles)
Genus	Phacellodomus	Chelonia (Green Sea Turtles)
Species	Phacellodomus dorsalis	Chelonia mydas

Evolutionary Relationship

Chestnut-backed Thornbird and Green Sea Turtle share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Chestnut-backed Thornbird

NT — Near Threatened

Green Sea Turtle

EN — Endangered

Population: ~85.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chestnut-backed Thornbird	Green Sea Turtle
Diet	—	Herbivore
Average Lifespan	—	80 years
Average Length	—	1.2 m
Average Weight	—	200.0 kg

Habitat & Geographic Range

Chestnut-backed Thornbird

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Green Sea Turtle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 8 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Australia, Brazil, Costa Rica, Indonesia, and Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut-backed Thornbird

The Chestnut-backed Thornbird (Phacellodomus dorsalis) is a species in the genus Phacellodomus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Green Sea Turtle

The green sea turtle is one of the largest sea turtles. They are named for the green color of their cartilage and fat, not their shells.