Blyth's Frogmouth vs Hodgson's Frogmouth
Batrachostomus affinis 比較対象 Batrachostomus hodgsoni
Side-by-Side Comparison
| 属性 | Blyth's Frogmouth | Hodgson's Frogmouth |
|---|---|---|
| 学名 | Batrachostomus affinis | Batrachostomus hodgsoni |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Podargidae | Podargidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 26.6 cm (10.5 in) |
| 体重 | 47.8 g (1.69 oz) | 51.0 g (1.80 oz) |
| 食性 | Night-active insectivore feeding on large beetles, moths, and crickets; drops from low branches to capture … | Nocturnal insectivore and occasional small-vertebrate predator; hunts by still-perch and drop technique onto large prey. |
| 一腹卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Blyth's Frogmouth
Soft, repeated hooting whistle; 'wooo' calls from lowland Indochina forest; gentle pitch; calls at night from dense undergrowth; closely related to Horsfield's Frogmouth
Hodgson's Frogmouth
Soft, whistled 'whoo-whoo'; gentle mellow hoot from Himalayan forest; calls at dusk and night; pairs duet with slightly different pitch; alarm a prolonged hiss
Geographic Range & Migration
Blyth's Frogmouth
Found in the Thai-Malay Peninsula, Sumatra, and Borneo in lowland forest and peat swamp forest. Closely related to Horsfield's Frogmouth.
Hodgson's Frogmouth
Found from northeastern India through Myanmar, Thailand, and Indochina. Resident in foothill and hill forest at 300–2,000 m elevation.
保全状況
Blyth's Frogmouth
Hodgson's Frogmouth
How to Tell Them Apart
Blyth's Frogmouth
Males brown-grey with dark vermiculations and white scapular spots; females rufous-buff with spotted coverts; Sundaland frogmouth recently split from Horsfield's; differs in marginally warmer brown tone and distribution.
Hodgson's Frogmouth
Males grey-brown with dense dark vermiculations and bold white scapular spots; females rufous-chestnut with white-spotted wing coverts; relatively large Batrachostomus; ranges across Himalayan foothills and mainland Southeast Asia.
About These Birds
Blyth's Frogmouth
ミャンマーから東南アジア本土を経てボルネオにかけての低地林に生息する中型のガマグチヨタカ（23〜25cm）。淡い首輪を持つ褐色の羽毛。夜行性の昆虫食者。ホースフィールドガマグチヨタカと近縁。原生林と二次林の下生えに生息する。
Hodgson's Frogmouth
東ヒマラヤとインドシナの山麓と山地林に生息する中型のガマグチヨタカ（24〜27cm）。大胆な白い斑点模様を持つ褐色の羽毛。密な林下生えの夜行性昆虫食者。標高300〜2,000mに生息する。