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Side-by-Side Comparison

属性	Blue Bustard	Little Brown Bustard
学名	Eupodotis caerulescens	Heterotetrax humilis
目	Otidiformes	Otidiformes
科	Otididae	Otididae
保全状況	Near Threatened	Near Threatened
体長	—	—
翼開長	64.6 cm (25.4 in)	46.5 cm (18.3 in)
体重	1370.4 g (48.34 oz)	700.0 g (24.69 oz)
食性	Feeds on insects, small vertebrates, seeds, and forbs in South African grassland. Beetles and grasshoppers …	Omnivore of open grasslands, eating insects, small vertebrates, seeds, and green shoots. Beetles and grasshoppers …
一腹卵数	1-3	2-3
Population Trend	—	—

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Habitat Comparison

共通生息地

🌾 Grassland

Blue Bustard only

None

Little Brown Bustard only

None

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Song & Call Comparison

Blue Bustard

さえずり

Loud, low booming call; deep resonant notes carrying impressively across open dry savanna at dawn. Vocalization pattern typical of this species in its native habitat.

Little Brown Bustard

さえずり

Loud, grating bark with deep resonant character; carrying calls audible across open dry Southern African plains.

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Geographic Range & Migration

Blue Bustard

Endemic to the grasslands of southern South Africa from the Eastern Cape to KwaZulu-Natal. Near Threatened.

Little Brown Bustard

Found in the Horn of Africa from Ethiopia to Somalia. Resident in semi-arid grasslands. Near Threatened.

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保全状況

Near Threatened

Blue Bustard

Near Threatened

Little Brown Bustard

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How to Tell Them Apart

Blue Bustard

羽毛

Jamaican Lizard-cuckoo: brown above; rufous below; very long graduated tail; red orbital ring; yellow bill; Jamaica endemic species

Little Brown Bustard

羽毛

Black-billed Koel (Microdynamis): black bill; males glossy black; females brown-barred; long tail; red eye; New Guinea koel

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About These Birds

Blue Bustard

南アフリカの草地に生息するノガンで、青灰色の羽毛が特徴。準絶滅危惧種に指定されている。

Little Brown Bustard

タスマニアノガン（Heterotetrax humilis）は現在エチオピア・南スーダン・ウガンダのアフリカの角周辺の草原に生息するノガン科の小型ノガン（体長40〜45 cm）。暗褐色の縞模様の羽衣。ブッシュ・短草の草原の専門種。世界個体数は少ない。

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