Horsfield's Frogmouth vs Papuan Frogmouth
Batrachostomus javensis 比較対象 Podargus papuensis
Side-by-Side Comparison
| 属性 | Horsfield's Frogmouth | Papuan Frogmouth |
|---|---|---|
| 学名 | Batrachostomus javensis | Podargus papuensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 22.2 cm (8.7 in) | 57.9 cm (22.8 in) |
| 体重 | 46.333333333333336 g (1.63 oz) | 389.1666666666667 g (13.73 oz) |
| 食性 | Feeds nocturnally on large beetles, millipedes, and worms; occasionally takes small lizards by ground-pouncing. | Night hunter feeding primarily on large invertebrates and occasionally small lizards by perch-and-pounce technique. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Horsfield's Frogmouth
Melodic 'choo-choo-choo' or plaintive whistle; repeated soft notes; calls from Javan and Philippine forest at night; pitch moderate; pairs often answer each other
Papuan Frogmouth
Deep, booming 'oom-oom'; resonant hollow hoots from New Guinea rainforest; very large bird produces powerful low-frequency calls; alarm a loud hiss; calls at night
Geographic Range & Migration
Horsfield's Frogmouth
Found from the Thai-Malay Peninsula through Sumatra, Java, and Borneo to the Philippines. Resident in lowland and hill forest below 1,000 m.
Papuan Frogmouth
Found across New Guinea and adjacent islands. Resident in lowland and hill forest, forest edge, and secondary growth up to 1,500 m.
保全状況
Horsfield's Frogmouth
Papuan Frogmouth
How to Tell Them Apart
Horsfield's Frogmouth
Males grey-brown with black freckling and white scapular spots; females warm tawny-rufous with bold white-spotted wing coverts; smallest of the Southeast Asian frogmouths; Javan endemic with finely patterned cryptic plumage.
Papuan Frogmouth
Large; grey-brown upperparts finely vermiculated with black and buff; underparts pale grey-buff finely streaked and barred; prominent yellow eyes; females often more rufous-brown; largest frogmouth species in the Papuan region.
About These Birds
Horsfield's Frogmouth
マレー半島・スマトラ・ジャワ・ボルネオの低地と山麓の林に生息する中型のガマグチヨタカ（21〜25cm）。赤褐色の胸帯を持つ暗褐色の羽毛。密な林下生えの夜行性昆虫食者。特徴的な口笛のような鳴き声で発見されることが多い。
Papuan Frogmouth
The largest frogmouth (50-60 cm) found in New Guinea and surrounding islands. Rufous-brown plumage with white spots and vermiculations. Massive bill and large red or yellow eyes. Nocturnal insectivore of lowland and hill forests, feeding on large insects and small vertebrates.