Mexican Whip-poor-will vs Spotted Nightjar
Antrostomus arizonae مقارنةً بـ Eurostopodus argus
Side-by-Side Comparison
| السمة | Mexican Whip-poor-will | Spotted Nightjar |
|---|---|---|
| الاسم العلمي | Antrostomus arizonae | Eurostopodus argus |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Caprimulgidae | Caprimulgidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 31,9 cm (12.6 in) | 42,7 cm (16.8 in) |
| الوزن | 47,45 g (1.67 oz) | 102,5 g (3.62 oz) |
| النظام الغذائي | 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 … |
| عدد البيض في الوضع | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Mexican Whip-poor-will only
بلا
Spotted Nightjar only
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.
حالة الحفاظ
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
A medium Caprimulgidae nightjar (~103 g) of open woodland, spinifex grassland, and rocky ridges across mainland Australia. Intricately spotted and barred brown, grey, and buff. Cryptic by day on the ground among leaf litter. Crepuscular and nocturnal; feeds on flying insects caught in aerial pursuit. Least Concern.