Yucatan Nightjar vs Archbold's Nightjar

Antrostomus badius compared with Eurostopodus archboldi

Side-by-Side Comparison

Attribute Yucatan Nightjar Archbold's Nightjar
Scientific Name Antrostomus badius Eurostopodus archboldi
Order Caprimulgiformes Caprimulgiformes
Family Caprimulgidae Caprimulgidae
Conservation Status Least Concern Least Concern
Length
Wingspan 32.6 cm (12.8 in) 41.0 cm (16.1 in)
Weight 58.03333333333333 g (2.05 oz) 77.0 g (2.72 oz)
Diet Nocturnal aerial insectivore; catches moths and flying insects over Yucatan dry forest and scrub. Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest.
Clutch Size 2 1
Population Trend

Habitat Comparison

Shared Habitats

Yucatan Nightjar only

None

Archbold's Nightjar only

None

Song & Call Comparison

Yucatan Nightjar

Song

Whistled 'WEEP-weep' phrase; clear, melodic call from Yucatan dry forest; repeated steadily at night; lower than Tawny-collared; alarm a sharp bark note

Archbold's Nightjar

Song

Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea

Geographic Range & Migration

Yucatan Nightjar

Resident of lowland tropical forest and scrub in the Yucatan Peninsula of Mexico, Belize, and northern Guatemala.

Archbold's Nightjar

Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.

Conservation Status

Least Concern

Yucatan Nightjar

Least Concern

Archbold's Nightjar

How to Tell Them Apart

Yucatan Nightjar

Plumage

Brown and grey mottled above with buff vermiculations; lacks tawny collar of Tawny-collared Nightjar; white gorget in male; pale buff below; white outer tail spots in male; buff tail in …

Archbold's Nightjar

Plumage

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

Yucatan Nightjar

A medium-small Caprimulgidae nightjar (~58 g) restricted to the Yucatan Peninsula, northern Guatemala, and northern Belize. Inhabits dry deciduous and semi-evergreen forest. Brown-and-buff cryptic plumage. Calls with a repetitive whip-like phrase at night. Feeds on moths and beetles. Least Concern; limited but stable range.

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.

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