Chuck-will's-widow

Look for

You almost certainly won't see one — this is an ear bird. If you do spot one: a large, mottled brown nightjar roosting lengthwise on a branch or sitting on a forest road at dusk. Huge gaping mouth (wider than its head), cryptic bark-colored plumage, and enormous dark eyes. Much bigger than a Whip-poor-will.

Size: ~12" — robin-sized but much flatter and wider. Wingspan 26".

Listen for

• Song: the namesake call — "CHUCK-will's-WID-ow" — repeated endlessly at dusk and dawn. The first "chuck" is often inaudible at distance, so it sounds like "will's-WID-ow."
• When: begins calling at civil twilight (20–30 min after sunset) and continues into darkness. Also calls pre-dawn.
• Volume: LOUD — audible 1/4 mile+ on calm nights.

Sound is everything. This is a bird you experience by ear. Go to the right habitat at dusk, stand still, and listen.

Where in Memphis / region

Uncommon but vocal in the right habitat at the right time:

• Open deciduous/pine-oak woodland with leaf-litter floor
• Forest roads + edges at dusk
• Cedar glades with adjacent forest

Target locations:

• Cedars of Lebanon (excellent — cedar glade forest edges)
• Natchez Trace forest roads at dusk
• Meeman-Shelby bluff forest edges
• Overton Park old-growth (occasionally heard)

Behavior

• Strictly crepuscular/nocturnal — roosts motionless during the day.
• Sits on ground or lengthwise on branches — cryptic plumage makes them nearly invisible.
• Catches insects in flight with enormous gape — sometimes catches small birds and bats.
• Ground nester — no nest structure, lays eggs directly on leaf litter.
• Will move eggs if disturbed — one of very few birds that relocates eggs.

Story

The voice of southern summer nights

Chuck-will's-widow is the quintessential sound of warm southern evenings. From April through August, their repetitive calls define the twilight hour across the Southeast. Early settlers named the bird by its call — one of the best examples of onomatopoeia in bird names.

The closely related Eastern Whip-poor-will (Antrostomus vociferus) sounds similar but says "whip-poor-WILL" — higher-pitched, faster, and breeds further north. In Middle TN, both species overlap, and sorting them by ear is a classic birding challenge.

The bird that eats other birds

Chuck-will's-widows have the largest gape of any nightjar — their mouth can open wider than their skull. They primarily eat large moths and beetles, but they've been documented swallowing small birds whole — including warblers and hummingbirds. They've even been recorded eating small bats.

This makes them one of the few songbird-sized predators of other birds.

Goatsuckers

The nightjar family name Caprimulgidae literally means "goat-sucker" — from the ancient European folk belief that nightjars sucked milk from goats at night. The real explanation: nightjars flutter around livestock at dusk catching the insects attracted to them. The myth persisted for centuries.

Fun facts

• Largest nightjar in North America — significantly bigger than Whip-poor-will.
• A single bird may repeat its call 800+ times in a session without pause.
• Their eggs are camouflaged — nearly invisible on leaf litter.
• Migrate to Central America + Caribbean for winter.
• Oldest known wild Chuck-will's-widow: 14+ years.
• They have tiny bristle-like feathers around their mouth that help funnel insects into the gape.

Field notes (to add)

• Cedars of Lebanon dusk listening spots
• Audio: the namesake call at twilight
• Comparison: Chuck-will's-widow vs Whip-poor-will calls