Common Poorwill vs Chuck-will's-widow

In short

The Common Poorwill and Chuck-will's-widow are both nocturnal nightjars, but they can be distinguished by size and vocalization. The Chuck-will's-widow is larger and more vocal, while the Common Poorwill is smaller and often silent.

Identification tips

1. Size: Look for the larger size of the Chuck-will's-widow. 2. Vocalization: Listen for the distinctive song of the Chuck-will's-widow. 3. Habitat: Consider the habitat, with Common Poorwills in drier, western regions and Chuck-will's-widows in more open, southeastern areas. 4. Behavior: Note the torpor behavior of the Common Poorwill in colder months.

Size

The Chuck-will's-widow is significantly larger than the Common Poorwill.

Plumage

Both species have cryptic plumage suited for camouflage, but the Chuck-will's-widow generally appears more robust with a broader head.

Behaviour

The Common Poorwill is known for its ability to enter torpor, especially in colder months, while the Chuck-will's-widow is more active and may be seen foraging on the ground during molt.

Habitat

Common Poorwills inhabit high prairies and semi-arid regions of western North America, whereas Chuck-will's-widows are found in more open areas, often in the southeastern United States.

Voice

The Chuck-will's-widow has a distinctive, onomatopoeic song often heard at dusk and dawn, while the Common Poorwill is typically quieter.