Red-necked Nightjar vs Heinrich's Nightjar
Caprimulgus ruficollis comparado com Eurostopodus diabolicus
Side-by-Side Comparison
| Atributo | Red-necked Nightjar | Heinrich's Nightjar |
|---|---|---|
| Nome científico | Caprimulgus ruficollis | Eurostopodus diabolicus |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Caprimulgidae | Caprimulgidae |
| Estado de conservação | Near Threatened | Least Concern |
| Comprimento | — | — |
| Envergadura | 39,6 cm (15.6 in) | 39,9 cm (15.7 in) |
| Peso | 86,33333333333333 g (3.05 oz) | 104,0 g (3.67 oz) |
| Dieta | Hawks large moths, beetles, and flying insects at night over Iberian and North African scrub … | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| Tamanho da postura | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Red-necked Nightjar
Loud, resonant 'cut-CHER-cut' or 'cotcorotcot'; far-carrying hollow knocking; churring trill between phrases; calls from scrubby Mediterranean habitats at night
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Red-necked Nightjar
Breeds on the Iberian Peninsula, Morocco, and northwestern Algeria; long-distance migrant wintering in sub-Saharan West Africa from Senegal to Guinea.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
Estado de conservação
Red-necked Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Red-necked Nightjar
Large nightjar; grey-brown mottled above; rufous-orange hindneck collar diagnostic; white throat patch in male; white spots on wing coverts and outer tail in male; buff equivalents in female.
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
About These Birds
Red-necked Nightjar
A large Caprimulgidae nightjar (~86 g) breeding in open pine forest and scrub of Iberia and northwestern Africa, wintering in sub-Saharan West Africa. A rufous collar is distinctive among Palearctic nightjars. Calls with a loud rhythmic 'kutuk-kutuk' at night. Feeds on large moths. Near Threatened from habitat loss.
Heinrich's Nightjar
A medium Caprimulgidae nightjar (~104 g) endemic to the forest and forest-edge habitats of Sulawesi, Indonesia. Cryptically patterned brown-and-buff. Nocturnal insectivore; catches moths and beetles in aerial sallies. Little studied and rarely encountered in the field. Least Concern within its Sulawesi range.