Sykes's Nightjar vs Lesser Nighthawk
Caprimulgus mahrattensis so với Chordeiles acutipennis
Side-by-Side Comparison
| Thuộc Tính | Sykes's Nightjar | Lesser Nighthawk |
|---|---|---|
| Tên Khoa Học | Caprimulgus mahrattensis | Chordeiles acutipennis |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 33,9 cm (13.3 in) | 33,0 cm (13.0 in) |
| Khối Lượng | 57,0 g (2.01 oz) | 50,0 g (1.76 oz) |
| Chế Độ Ăn | Crepuscular and nocturnal insectivore; forages by sight for moths and large flying beetles above humid … | Hawks small flying insects at dusk and dawn over North and South American arid scrub … |
| Số Trứng | 2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sykes's Nightjar
Churring trill with hollow 'chuck' interspersed; 'chuck-churr' pattern; calls from Pakistani desert scrub at night; calls during moonlit nights from sandy ground
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
Geographic Range & Migration
Sykes's Nightjar
Found in Pakistan, northwestern India, and adjacent Iran and Afghanistan. Resident in dry scrub, rocky hillsides, and semi-desert plains.
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.
Tình Trạng Bảo Tồn
Sykes's Nightjar
Lesser Nighthawk
How to Tell Them Apart
Sykes's Nightjar
Pale greyish-brown upperparts with intricate black-brown shaft streaks and pale buff freckling; whitish chin bar; underparts buff with sparse brown barring; resembles Egyptian but greyer overall.
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 …
About These Birds
Sykes's Nightjar
A small, pale nightjar (23 cm) of arid and semi-arid regions from Iran through Pakistan to western India. Sandy-grey plumage blends with desert terrain. Nocturnal insectivore, feeding on moths and beetles while in buoyant flight. Resident and partial migrant.
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.