Lesser Nighthawk

Characterized by a slender, aerodynamic silhouette of medium size, this bird measures between 19 and 23 centimeters in length with a wingspan of approximately 53 centimeters. Its plumage is highly cryptic, featuring complex patterns of grayish, brownish, black, and buff tones that render it nearly invisible when resting on the ground. It is distinguished from closely related taxa by its long, pointed wings that display a prominent white bar (in males) or buff bar (in females) located near the tips of the primary feathers. Males exhibit a distinctive V-shaped white throat patch and a white subterminal band across the tail feathers, both of which are either buff-colored or completely absent in females.

Geographical distribution: This species occupies a vast range across the Americas, breeding from the southwestern United States (specifically California, Arizona, New Mexico, and Texas) and Mexico, south through Central America, and into northern and central regions of South America, including Colombia, Venezuela, Ecuador, Peru, Bolivia, and western Brazil. Northern migratory populations travel south during the autumn to winter in tropical regions of Central and South America, whereas equatorial populations remain resident throughout the entire year.

Habitat: Strongly associated with arid and semi-arid ecological zones, it is frequently found in xerophytic scrublands, deserts, dry savannas, open grassy plains, dry deciduous forest edges, and low-intensity agricultural lands. It strictly avoids dense tropical rainforests and closed-canopy environments, requiring wide, unobstructed spaces for foraging flights. It occurs from sea level up to 2,500 meters in elevation, occasionally adapting to suburban environments where artificial lighting structures attract nocturnal insects.

Feeding: Functioning as an aerial insectivore, it hunts exclusively on the wing, capturing its prey during agile and highly maneuverable flights. Its diet consists of a wide array of flying invertebrates, including beetles, moths, dragonflies, flies, winged termites, and flying ants. The species is equipped with a wide gape that functions as an effective trap, allowing it to feed efficiently during twilight hours and under moonlight, often concentrating over wetlands or near streetlights where insects gather.

Behavior: This crepuscular and nocturnal bird is most active during twilight and dawn. During the daytime, it roosts horizontally on the ground, on fallen logs, or on low, horizontal branches, relying completely on its exceptional camouflage to avoid detection. Its flight pattern is notably buoyant, erratic, and silent, typically performed much closer to the ground than that of other nighthawks. During the breeding season, males produce a low, vibrating, frog-like trill that functions as a territorial advertisement and courtship call.

Nesting: No physical nest structure is built by this species. The female lays a clutch typically composed of two elliptical, pale gray or cream-colored eggs, heavily speckled with darker spots, directly onto bare soil, gravel, leaf litter, or flat gravel roofs in urban settings. The chosen nesting site is usually situated under the partial shade of a desert shrub or herbaceous plant to protect the eggs from extreme heat. Incubation, shared by both parents, lasts for 18 to 20 days. The semi-precocial chicks are covered in cryptically patterned down and can crawl short distances into shaded microhabitats shortly after hatching.

Conservation status: Classified as a species of Least Concern (LC) on the IUCN Red List of Threatened Species. While global populations remain large and widely distributed, certain localized populations are experiencing declines due to habitat fragmentation from urban sprawl and agriculture, as well as the depletion of aerial insect populations resulting from the intensive use of chemical pesticides.