Brown eagle-ray vs Colombian Grebe

Aetomylaeus milvus compared with Podiceps andinus

Key Differences

• Brown eagle-ray is Endangered while Colombian Grebe is Extinct.

Taxonomic Classification

Rank	Brown eagle-ray	Colombian Grebe
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (burung)
Order	Myliobatiformes (Myliobatiformes)	Podicipediformes (Podicipediformes)
Family	Myliobatidae	Podicipedidae
Genus	Aetomylaeus	Podiceps
Species	Aetomylaeus milvus	Podiceps andinus

Evolutionary Relationship

Brown eagle-ray and Colombian Grebe share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown eagle-ray

EN — Endangered

Colombian Grebe

EX — Extinct

Physical Characteristics

Attribute	Brown eagle-ray	Colombian Grebe
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown eagle-ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Colombian Grebe

Habitat

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

Range

Distributed across Colombia and Norway.

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Colombian Grebe

<em>Podiceps andinus</em>, commonly known as the Colombian Grebe, is a bird species belonging to the genus <em>Podiceps</em> within the family Podicipedidae. This species is classified as Extinct, with the last confirmed sightings recorded in the 1970s at Lake Tota in Colombia, its sole known location. The Colombian Grebe was endemic to Colombia and is believed to have been primarily restricted to that high-altitude lake. A record from Norway in available data likely reflects a historical or erroneous entry rather than a genuine occurrence. The species inhabited various aerial, terrestrial, and aquatic environments in the context of its lake ecosystem, diving for fish and other aquatic prey in the manner characteristic of grebes. Habitat drainage for agricultural purposes, hunting, and pesticide contamination of its lake habitat are considered the primary drivers of its extinction. Dietary information specific to this species has not been documented, though grebes typically consume fish and aquatic invertebrates. Biological traits of this species remain poorly documented in the scientific literature. The extinction of <em>Podiceps andinus</em> is considered one of the notable avian losses of the twentieth century in South America.