Gunnison Grouse vs Ahanta Spurfowl
Centrocercus minimus verglichen mit Pternistis ahantensis
Side-by-Side Comparison
| Merkmal | Gunnison Grouse | Ahanta Spurfowl |
|---|---|---|
| Wissenschaftlicher Name | Centrocercus minimus | Pternistis ahantensis |
| Ordnung | Galliformes | Galliformes |
| Familie | Phasianidae | Phasianidae |
| Erhaltungsstatus | Endangered | Least Concern |
| Länge | — | — |
| Flügelspannweite | 57,0 cm (22.4 in) | 34,6 cm (13.6 in) |
| Gewicht | 1575,0 g (55.56 oz) | 547,5 g (19.31 oz) |
| Ernährung | Highly dependent on sagebrush for winter foliage; eats forbs and invertebrates in spring and summer. … | Feeds on seeds, invertebrates, and plant matter in West African lowland forest and thicket. |
| Gelegegröße | 6-10 | 3-12 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Gunnison Grouse
Lek display similar to Sage Grouse but faster and higher-pitched: 'swish-swish-ploop-ploop'; 9-note sequence vs. 7 in Sage Grouse. Plume rattle more pronounced. Alarm is harsh cacking.
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
Gunnison Grouse
Endemic to Gunnison Basin and adjacent areas of southwestern Colorado. Found in sagebrush habitat. Critically endangered.
Ahanta Spurfowl
Resident of dense lowland and coastal forest in West Africa from Ghana to Cameroon; also found in Bioko Island.
Erhaltungsstatus
Gunnison Grouse
Ahanta Spurfowl
How to Tell Them Apart
Gunnison Grouse
Male similar to Sage Grouse but smaller; black belly, white breast, spiky tail with more white barring; prominent white neck filoplumes; yellow eye-combs; yellow-green breast air sacs used in display.
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
Gunnison Grouse
A large grouse (~1.6 kg) of family Phasianidae, closely related to Sage Grouse but smaller with longer filoplumes during lek display. Restricted to the Gunnison Basin of southwestern Colorado and a small area of Utah. Entirely dependent on intact sagebrush habitat. Endangered; one of North America's rarest birds with fewer than 5,000 individuals, threatened by habitat fragmentation and drought.
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.