agate cone vs Chuck-will's-widow

Conus ermineus compared with Antrostomus carolinensis

Taxonomic Classification

Rank	agate cone	Chuck-will's-widow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Neogastropoda (Neogastropoda)	Caprimulgiformes (Caprimulgiformes)
Family	Conidae	Caprimulgidae
Genus	Conus	Antrostomus
Species	Conus ermineus	Antrostomus carolinensis

Evolutionary Relationship

agate cone and Chuck-will's-widow share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

agate cone

LC — Least Concern

Chuck-will's-widow

LC — Least Concern

Physical Characteristics

Attribute	agate cone	Chuck-will's-widow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

agate cone

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm.

Range

Distributed across Angola and Cabo Verde.

Chuck-will's-widow

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

agate cone

The Agate cone (Conus ermineus) is a species in the genus Conus. It is currently classified as Least Concern on the IUCN Red List. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeogr.

Chuck-will's-widow

The Chuck-will's-widow (Antrostomus carolinensis) is the largest nightjar in North America, named for its distinctive far-carrying call — a resonant four-syllable whistle repeated persistently on warm nights. It breeds across the southeastern United States, from the Atlantic coastal plain through the Gulf states and up the Mississippi Valley to southern Indiana and Kansas. The species migrates southward in autumn to winter quarters in the Caribbean, Central America, and northern South America. Like all nightjars, it is a crepuscular and nocturnal insectivore, capturing large moths, beetles, and other flying insects in flight using its enormous, bristle-fringed gape. By day, the Chuck-will's-widow roosts on the ground or along horizontal branches, relying on cryptic mottled plumage for concealment. It nests directly on the leaf litter of open woodland and scrub, typically in pine-oak forests, dry forests, and woodland edges. The IUCN classifies this species as Least Concern, though Breeding Bird Survey data suggest moderate long-term population declines linked to forest fragmentation and light pollution that disrupts insect prey availability. Conservation of large-scale woodland tracts in the southeastern United States benefits this species and its associated nightjar community.