Grey Nightjar vs Antillean Nighthawk
Caprimulgus jotaka เปรียบเทียบกับ Chordeiles gundlachii
Side-by-Side Comparison
| คุณสมบัติ | Grey Nightjar | Antillean Nighthawk |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus jotaka | Chordeiles gundlachii |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 40.7 cm (16.0 in) | 34.2 cm (13.5 in) |
| น้ำหนัก | 84.4 g (2.98 oz) | 56.05 g (1.98 oz) |
| อาหาร | Hawks moths and large insects at dusk and night over East and SE Asian forest … | Catches flying insects in aerial sallies over Caribbean open country and coastal scrub at dusk. |
| จำนวนไข่ | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Grey Nightjar
Persistent 'cawk-cawk-cawk'; hollow, frog-like notes repeated rapidly; calls from East Asian forests at night; higher-pitched variant churr also given; very persistent caller
Antillean Nighthawk
Distinctive 'kill-and-dee-dick' or 'killydee'; buzzy nasal call audible overhead; faster and shorter phrasing than Common Nighthawk; Caribbean accent clear
Geographic Range & Migration
Grey Nightjar
Breeds in deciduous and mixed forest from far eastern Russia and northern China south to Korea and Japan; winters in southern and Southeast Asia.
Antillean Nighthawk
Breeds in the Caribbean (Bahamas, Cuba, Cayman Islands, Jamaica) and Florida Keys; partially migratory within the Caribbean region.
สถานะการอนุรักษ์
Grey Nightjar
Antillean Nighthawk
How to Tell Them Apart
Grey Nightjar
Grey-brown above with pale buff vermiculations; grey tones stronger than Jungle Nightjar; white throat patch; white outer wing spots; white outer tail in male; buff throat and tail spots in …
Antillean Nighthawk
Brown and buff mottled above with dark brown streaking; white throat patch in male; barred buff-white underparts; white wing bar across primaries; white tail band in male; female has buff …
About These Birds
Grey Nightjar
A medium Caprimulgidae nightjar (~84 g) of montane forest and forest edges in Japan, Korea, and northeastern China, wintering in Southeast Asia. Greyish brown with fine vermiculations. Recently split from the Jungle Nightjar. Males call with a nasal 'pyo-pyo' at dusk. Feeds on flying insects. Least Concern.
Antillean Nighthawk
A small Caprimulgidae nighthawk (~56 g) of open scrub, savannas, and coastal habitats in the Caribbean from Cuba and Hispaniola to Puerto Rico and the Virgin Islands. Very similar to the Common Nighthawk but separated by voice. Migratory; winters in South America. Aerial insectivore; Least Concern.