Lesser Nighthawk vs Eared Poorwill
Chordeiles acutipennis مقارنةً بـ Nyctiphrynus mcleodii
Side-by-Side Comparison
| السمة | Lesser Nighthawk | Eared Poorwill |
|---|---|---|
| الاسم العلمي | Chordeiles acutipennis | Nyctiphrynus mcleodii |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Caprimulgidae | Caprimulgidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 33,0 cm (13.0 in) | 24,1 cm (9.5 in) |
| الوزن | 50,0 g (1.76 oz) | 31,775 g (1.12 oz) |
| النظام الغذائي | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Hawks small flying insects at night in Mexican pine-oak forest on Pacific slopes. |
| عدد البيض في الوضع | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
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
Eared Poorwill
Melodic 'poor-will' whistle; soft and repetitive; calls from Mexican pine-oak forest at night; distinctive tonal quality slightly harsher than other poorwills
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.
Eared Poorwill
Resident of highland pine-oak forest and scrub in the Sierra Madre Occidental of Mexico (Sinaloa, Durango, Nayarit), at 1,000–2,500 m.
حالة الحفاظ
Lesser Nighthawk
Eared Poorwill
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 …
Eared Poorwill
Small; brown and buff mottled with dark vermiculations; small tufted ear-like feathers above eye diagnostic; white throat in male; buff throat in female; small white outer tail spots; Mexican highland …
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.
Eared Poorwill
A small Caprimulgidae poorwill (~32 g) of pine-oak forest and wooded hillsides in the Sierra Madre Occidental of western Mexico. Named for subtle pale ear tufts. Cryptic brown-and-buff plumage; roosts on ground or branches. Nocturnal insectivore. Rarely seen but detected by its repeated whistled calls. Least Concern.