Freckled Nightjar vs Archbold's Nightjar
Caprimulgus tristigma comparado com Eurostopodus archboldi
Side-by-Side Comparison
| Atributo | Freckled Nightjar | Archbold's Nightjar |
|---|---|---|
| Nome científico | Caprimulgus tristigma | Eurostopodus archboldi |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Caprimulgidae | Caprimulgidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 34,4 cm (13.5 in) | 41,0 cm (16.1 in) |
| Peso | 79,88333333333334 g (2.82 oz) | 77,0 g (2.72 oz) |
| Dieta | Nocturnal aerial insectivore, hawking moths, beetles, and other flying insects in sustained sallying flight over … | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. |
| Tamanho da postura | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Freckled Nightjar
Loud, dog-like 'bow-wow' or 'woof-woof'; unusual barking call for a nightjar; carries across rocky African outcrops; alarm a sharp 'chek'; distinctive among all nightjars
Archbold's Nightjar
Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea
Geographic Range & Migration
Freckled Nightjar
Found in Borneo and Sumatra in lowland rainforest and peat swamp forest. Rare and seldom recorded; possibly resident year-round.
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
Estado de conservação
Freckled Nightjar
Archbold's Nightjar
How to Tell Them Apart
Freckled Nightjar
Heavily freckled dark grey and black upperparts resembling granite surfaces; whitish throat patch; underparts densely barred dark and pale; uniquely dark stone-coloured cryptic plumage adapted to rocky outcrops in Africa.
Archbold's Nightjar
Brown and dark grey with rufous-buff vermiculations; whitish throat patch; pale buff supercilium contrasts with darker crown; no white wing or tail patches; tail barred; New Guinea highlands; few records.
About These Birds
Freckled Nightjar
Noitibó-manchado de 26–28 cm, habita florestas úmidas e savanas da África subsaariana.
Archbold's Nightjar
A small Caprimulgidae nightjar (~77 g) known from subalpine grasslands and forest margins in the interior mountains of New Guinea. Named after naturalist Richard Archbold. Cryptic brown-patterned plumage. Nocturnal insectivore. Infrequently observed; biology largely undescribed. Least Concern in its montane range.