Lesser Nighthawk vs Yucatan Poorwill
Chordeiles acutipennis so với Nyctiphrynus yucatanicus
Side-by-Side Comparison
| Thuộc Tính | Lesser Nighthawk | Yucatan Poorwill |
|---|---|---|
| Tên Khoa Học | Chordeiles acutipennis | Nyctiphrynus yucatanicus |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 33,0 cm (13.0 in) | 21,8 cm (8.6 in) |
| Khối Lượng | 50,0 g (1.76 oz) | 24,5 g (0.86 oz) |
| Chế Độ Ăn | Hawks small flying insects at dusk and dawn over North and South American arid scrub … | Aerial insectivore; catches moths and beetles at night over Yucatan Peninsula dry forest and scrub. |
| Số Trứng | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Lesser Nighthawk only
Yucatan Poorwill 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
Yucatan Poorwill
Thin, whistled 'poor-will'; high and reedy for a nightjar; calls from dry Yucatan scrub at dusk; small size reflected in lighter, thinner call quality
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.
Yucatan Poorwill
Resident of lowland tropical forest and scrub in the Yucatan Peninsula of Mexico, Belize, and northern Guatemala.
Tình Trạng Bảo Tồn
Lesser Nighthawk
Yucatan 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 …
Yucatan Poorwill
Pale sandy-brown and buff mottled above; pale buff below with dark barring; white throat in male; no ear tufts unlike Eared Poorwill; small white outer tail spots; restricted to Yucatan …
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.
Yucatan Poorwill
A tiny Caprimulgidae poorwill (~25 g) of dry scrub and thorn forest on the Yucatan Peninsula and adjacent Belize. One of the smallest poorwills. Brown-and-buff finely vermiculated plumage. Roosts on the ground amid leaf litter. Nocturnal insectivore, taking tiny moths and beetles. Least Concern within its restricted range.