Sage Grouse vs Ahanta Spurfowl
Centrocercus urophasianus 비교 대상 Pternistis ahantensis
Side-by-Side Comparison
| 속성 | Sage Grouse | Ahanta Spurfowl |
|---|---|---|
| 학명 | Centrocercus urophasianus | Pternistis ahantensis |
| 목 | Galliformes | Galliformes |
| 과 | Phasianidae | Phasianidae |
| 보전 상태 | Near Threatened | Least Concern |
| 체장 | — | — |
| 날개 폭 | 61.2 cm (24.1 in) | 34.6 cm (13.6 in) |
| 체중 | 2100.0 g (74.08 oz) | 547.5 g (19.31 oz) |
| 식성 | Feeds almost entirely on sagebrush leaves and buds in winter; insects and forbs important in … | Feeds on seeds, invertebrates, and plant matter in West African lowland forest and thicket. |
| 산란 수 | 7-15 | 3-12 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sage Grouse
Males produce extraordinary lek display: deep swishing 'swish-swish-coo-OO-ploop' using air sacs; low frequency, liquid, and otherworldly. Alarm is a cackling 'cac-cac'; females cluck softly.
Ahanta Spurfowl
Loud, staccato 'krak-krak-KRAAK' from W African forest edge; slightly higher than larger spurfowl. Alarm is rapid explosive cackling. Pairs call in loose synchrony at dawn in secondary growth.
Geographic Range & Migration
Sage Grouse
Resident in sagebrush habitat of the western United States and southwestern Canada. Found in semi-arid plains with Artemisia. Vulnerable.
Ahanta Spurfowl
Resident of dense lowland and coastal forest in West Africa from Ghana to Cameroon; also found in Bioko Island.
보전 상태
Sage Grouse
Ahanta Spurfowl
How to Tell Them Apart
Sage Grouse
Male has black belly, white breast, spiky pointed tail; yellow eye-combs; during display inflates yellow-green bare breast sacs exposing white feather ruff. Female mottled brown with dark belly patch.
Ahanta Spurfowl
Dark brown above with pale buff shaft streaks; whitish below with dark brown streaking; red bill; red orbital skin; yellow legs. Sexes similar; closely resembles Double-spurred Spurfowl; West African forests.
About These Birds
Sage Grouse
북미 최대 뇌조(약 2.1 kg)로 수컷은 구애 과시 중 노란 공기주머니를 부풀리는 뾰족한 꼬리를 가진다. 미국 서부와 캐나다의 쑥(Artemisia) 생태계에 먹이와 번식 모두 전적으로 의존한다. 주로 쑥 잎을 먹는다. 준위협종으로 쑥 서식지 광범위한 전환으로 개체수가 크게 감소했다.
Ahanta Spurfowl
A medium Phasianidae spurfowl (~548 g) of lowland and secondary forest edges in West Africa from Ivory Coast to Nigeria. Dark brown streaked white; red orbital skin. Forages on the ground in pairs or small groups for seeds, berries, and invertebrates. Tolerates forest fragments; Least Concern.