Irrawaddy dolphin vs Scale-crested Pygmy-Tyrant

Orcaella brevirostris compared with Lophotriccus pileatus

Key Differences

• Irrawaddy dolphin is Endangered while Scale-crested Pygmy-Tyrant is Least Concern.

Taxonomic Classification

Rank	Irrawaddy dolphin	Scale-crested Pygmy-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Passeriformes (Songbirds)
Family	Delphinidae (Oceanic Dolphins)	Tyrannidae
Genus	Orcaella	Lophotriccus
Species	Orcaella brevirostris	Lophotriccus pileatus

Evolutionary Relationship

Irrawaddy dolphin and Scale-crested Pygmy-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Irrawaddy dolphin

EN — Endangered

Scale-crested Pygmy-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Irrawaddy dolphin	Scale-crested Pygmy-Tyrant
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Scale-crested Pygmy-Tyrant

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Scale-crested Pygmy-Tyrant

Scale-crested Pygmy-Tyrant (Lophotriccus pileatus) 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.