Lesser Nighthawk vs Nacunda Nighthawk
Chordeiles acutipennis เปรียบเทียบกับ Chordeiles nacunda
Side-by-Side Comparison
| คุณสมบัติ | Lesser Nighthawk | Nacunda Nighthawk |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Chordeiles acutipennis | Chordeiles nacunda |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 33.0 cm (13.0 in) | 47.6 cm (18.7 in) |
| น้ำหนัก | 50.0 g (1.76 oz) | 157.0 g (5.54 oz) |
| อาหาร | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Aerial insectivore; forages in flocks hawking flying insects over South American grassland and open country. |
| จำนวนไข่ | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
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ไม่มี
Lesser Nighthawk only
Nacunda Nighthawk only
Song & Call Comparison
Lesser Nighthawk
Loud purring trill; buzzy 'brrrrr' given in flight; lower and softer than Common Nighthawk; males display with booming wingbeats; calls at dusk over deserts
Nacunda Nighthawk
Deep, booming 'na-KUN-da' or 'woop-woop'; low-pitched buzzy calls; wings produce loud rattling sound in display; louder than most nighthawks
Geographic Range & Migration
Lesser Nighthawk
Breeds in open arid scrub from southwestern USA south through Central America to western South America; winters in Mexico and northern South America.
Nacunda Nighthawk
Resident of open savanna, grassland, and scrub from Colombia and Venezuela south through Brazil to Argentina; partially nomadic.
สถานะการอนุรักษ์
Lesser Nighthawk
Nacunda Nighthawk
How to Tell Them Apart
Lesser Nighthawk
Brown and buff mottled above; buff-white below with brown barring; white throat in male; white wing bar closer to wingtip than in Common Nighthawk; buff tail band. Female with buff …
Nacunda Nighthawk
Large nighthawk; brown above with buff mottling; white throat and belly contrasting strongly with dark breast; bold white wing bar across primaries visible in flight; white tail band. Female has …
About These Birds
Lesser Nighthawk
A small Caprimulgidae nighthawk (~50 g) of deserts, semi-arid scrub, and open woodland from the southwestern United States to Peru and Brazil. Brown-and-buff patterned; males have a white throat bar. Low, buoyant flight close to the ground at dusk. Hunts insects aerially. Migratory; Least Concern.
Nacunda Nighthawk
The largest New World nighthawk (~157 g), family Caprimulgidae, of open savanna and grassland in South America east of the Andes. White belly is conspicuous in flight. Highly gregarious; roosts and hunts in flocks. Crepuscular and nocturnal aerial insectivore. Partially migratory in austral winter. Least Concern.