Chuck-will's-widow vs Clouded Leopard

Antrostomus carolinensis compared with Neofelis nebulosa

Key Differences

• Chuck-will's-widow is Least Concern while Clouded Leopard is Vulnerable.

Taxonomic Classification

Rank	Chuck-will's-widow	Clouded Leopard
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Aves (chim)	Mammalia (lớp Thú)
Order	Caprimulgiformes (Bộ Cú muỗi)	Carnivora (bộ Ăn thịt)
Family	Caprimulgidae	Felidae (Cats)
Genus	Antrostomus	Neofelis (Clouded Leopards)
Species	Antrostomus carolinensis	Neofelis nebulosa

Evolutionary Relationship

Chuck-will's-widow and Clouded Leopard share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Chuck-will's-widow

LC — Least Concern

Clouded Leopard

VU — Vulnerable

Population: ~10.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chuck-will's-widow	Clouded Leopard
Diet	—	Carnivore
Average Lifespan	—	15 years
Average Length	—	1.0 m
Average Weight	—	20.0 kg

Habitat & Geographic Range

Chuck-will's-widow

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

Clouded Leopard

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 11 distinct biome types spanning the Australasia and Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across China, Indonesia, Malaysia, Myanmar, and Thailand. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Clouded Leopard

A medium-sized wild cat weighing up to 26 kg, clouded leopards inhabit tropical and subtropical forests from the eastern Himalayas through Southeast Asia to Borneo. Named for their distinctive cloud-like coat markings, they possess the longest canine teeth relative to skull size of any wild cat and are exceptional climbers able to descend trees headfirst. Vulnerable due to deforestation, though the total population remains poorly known.