Lesser Nighthawk
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Quick Facts
- Scientific Name: Chordeiles acutipennis
- Spanish Name: Añapero menor
- Family: Caprimulgidae
- Known Nicknames: Texas Nighthawk, Booming Nighthawk
- Average Length: 18–23 cm / 7–9 in
- Average Weight: 45–70 g / 1.6–2.5 oz
- Wingspan: 45–50 cm / 18–20 in
- Key Feature: Long, pointed wings with white wing bar
- Primary Diet: Insectivore
- Range: Southwestern United States through Central America to northern South America
- Habitat: Open arid and semi-arid areas, grasslands, scrublands, and urban edges
- Social Structure: Solitary or loosely colonial
- Nesting/Breeding: Bare ground or gravel without a nest
- Conservation Status: Least Concern (LC)
- Population Trend: Stable
The **Lesser Nighthawk** (*Chordeiles acutipennis*) is a master of aerial camouflage, perfectly adapted for twilight hunting. Smaller and more delicate than its common relative, this bird boasts a mottled plumage of browns, grays, and buffs that makes it virtually invisible when resting on the ground or a tree branch during the day. Its most unique feature is its exceptionally long, pointed wings, which in flight reveal a striking white bar near the wingtips. Unlike other nightjars, the Lesser Nighthawk often forages low over water or open fields in a buoyant, erratic flight, using its tiny, whiskered bill to scoop up moths and beetles. A special behavioral trait is its "booming" display: during courtship, the male dives steeply, causing air to rush through its wing feathers to produce a deep, resonant sound that echoes across the desert dusk.
Fun Facts
The Lesser Nighthawk is a master of aerial insectivory, often hunting by flying low over water or open ground with its mouth agape, its gape lined with stiff, bristle-like feathers that act like a net to funnel moths and beetles into its mouth. Unlike most birds, it roosts lengthwise on branches or the ground, blending in perfectly with bark or dirt thanks to its cryptic, mottled plumage, and it even performs a "broken-wing" display to lure predators away from its eggs. A quirky behavior involves its booming, nasal "peent" call during courtship dives, where the male pulls up sharply to create a mechanical whooshing sound with his wing feathers, all while its huge, sensitive eyes allow it to navigate in near-total darkness.
Habitats & Distribution
The Lesser Nighthawk inhabits arid and semi-arid open habitats, including deserts, grasslands, savannas, scrublands, and coastal dunes. It is often found near water sources such as rivers, lakes, or wetlands, where insect prey is abundant. This species avoids dense forests and prefers areas with bare ground or sparse vegetation for roosting and nesting. Its geographical range extends from the southern United States (Texas, New Mexico, Arizona, California) through Mexico and Central America, and into South America as far as northern Chile and Argentina. Populations in the northern part of the range migrate south for the winter, while those in the tropics are resident year-round.
Behaviours & Reproduction
The Lesser Nighthawk is primarily crepuscular and nocturnal, with a social structure that is largely solitary outside of the breeding season. Mating is initiated by the male performing a dramatic aerial display at dusk, where he dives steeply toward the ground, producing a booming sound with his wings just before pulling up. This display is used to attract a female and to defend a loose territory. Courtship may also involve the male circling the female on the ground with his wings raised. The pair bond is generally monogamous for the breeding season, but there is no extended pair fidelity beyond it. A unique reproductive strategy is the complete lack of a constructed nest. The female lays her two eggs directly on bare ground, often among gravel, leaf litter, or on a flat rock, relying on their mottled, lichen-like camouflage to avoid predation. The female alone incubates the eggs, while the male guards the territory and provides food by hawking insects. The chicks are precocial and semi-nidifugous, able to move short distances within days of hatching, but they remain dependent on their parents for feeding. If a predator approaches the nest, the adult may perform a broken-wing distraction display to lure the threat away from the eggs or young.
Diet
The Lesser Nighthawk is an aerial insectivore, meaning it feeds exclusively on flying insects captured in mid-air during its crepuscular and nocturnal foraging flights. Its diet consists primarily of moths, beetles, flying ants, mosquitoes, and other small, soft-bodied insects, which it scoops up with its wide, gaping mouth. An interesting fact is that its feeding strategy is highly visual and tactile, relying on its large eyes and sensitive rictal bristles (stiff feathers around the mouth) to detect and funnel prey. Unlike many birds, it does not use its feet to handle food, nor does it hunt on the ground. Additionally, during periods of cold weather or food scarcity, Lesser Nighthawks can enter a state of torpor to conserve energy, dramatically slowing their metabolism until insect activity resumes.
Colors
The Lesser Nighthawk has highly cryptic, mottled plumage blending gray, brown, buff, black, and white, creating a bark-like or lichen-like pattern that camouflages it against ground or tree branches. Its long, pointed wings show a striking white bar near the tips, visible in flight. Unique adaptations include a very short, soft bill and a large gape for insect catching, with no bright markings except the white throat patch and wing bands.
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