Mexican Whip-poor-will vs Spotted Nightjar
Antrostomus arizonae 对比 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Mexican Whip-poor-will | Spotted Nightjar |
|---|---|---|
| 学名 | Antrostomus arizonae | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 31.9 cm (12.6 in) | 42.7 cm (16.8 in) |
| 体重 | 47.45 g (1.67 oz) | 102.5 g (3.62 oz) |
| 食性 | Hawks moths, beetles, and flying insects at night over pine-oak forest of Mexico and SW … | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 产卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mexican Whip-poor-will
Clear 'whip-poor-WILL'; similar to Eastern but slightly higher in pitch; calls from pine-oak highlands of Mexico; burry whistled quality; repeated persistently at night
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
Geographic Range & Migration
Mexican Whip-poor-will
Breeds in pine-oak highland forest in the mountains of Mexico and Central America; partially migratory at higher elevations.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保护状况
Mexican Whip-poor-will
Spotted Nightjar
How to Tell Them Apart
Mexican Whip-poor-will
Grey-brown and buff mottled above with dark vermiculations; white gorget in male; pale buff barred underparts; white outer tail tips in male; recently split from Eastern Whip-poor-will; slightly browner tones …
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
About These Birds
Mexican Whip-poor-will
A medium-small Caprimulgidae nightjar (~47 g) of pine-oak forests in the mountains of Arizona, New Mexico, and western Mexico. Recently split from the Eastern Whip-poor-will on morphological and vocal grounds. Calls with the same 'whip-poor-will' phrase. Feeds on moths and beetles nocturnally. Least Concern.
Spotted Nightjar
中型夜鹰（约103克）。栖息于澳大利亚大陆的开阔林地和纺锤草草地。无危。