Puerto Rican Nightjar vs Antillean Nighthawk
Antrostomus noctitherus в сравнении с Chordeiles gundlachii
Side-by-Side Comparison
| Характеристика | Puerto Rican Nightjar | Antillean Nighthawk |
|---|---|---|
| Научное название | Antrostomus noctitherus | Chordeiles gundlachii |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Caprimulgidae | Caprimulgidae |
| Охранный статус | Vulnerable | Least Concern |
| Длина | — | — |
| Размах крыльев | 26,5 cm (10.4 in) | 34,2 cm (13.5 in) |
| Масса | 35,99 g (1.27 oz) | 56,05 g (1.98 oz) |
| Питание | Catches large flying insects, especially moths, at night over Puerto Rican dry limestone forest; endangered. | Catches flying insects in aerial sallies over Caribbean open country and coastal scrub at dusk. |
| Размер кладки | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Puerto Rican Nightjar
Sharp 'took' or 'took-WHEEER'; distinctive two-note call; calls from dry coastal forest of Puerto Rico; endangered; calls less frequently than mainland relatives
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
Puerto Rican Nightjar
Endemic to Puerto Rico; critically endangered resident of karst limestone scrub and dry forest in the southwestern part of the island.
Antillean Nighthawk
Breeds in the Caribbean (Bahamas, Cuba, Cayman Islands, Jamaica) and Florida Keys; partially migratory within the Caribbean region.
Охранный статус
Puerto Rican Nightjar
Antillean Nighthawk
How to Tell Them Apart
Puerto Rican Nightjar
Small; grey-brown and buff mottled above with dark vermiculations; white gorget in male; pale buff barred underparts; white outer tail spots in male; buff tail in female; critically small range …
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
Puerto Rican Nightjar
A small Caprimulgidae nightjar (~36 g) endemic to the dry limestone coastal scrub of southwestern Puerto Rico. Cryptically patterned grey-brown. Restricted to a tiny area of suitable habitat; population estimated at a few hundred pairs. Feeds on insects at night. Vulnerable from habitat conversion and introduced predators.
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.