Caucasian Grouse vs Crested Partridge
Lyrurus mlokosiewiczi comparé à Rollulus rouloul
Side-by-Side Comparison
| Attribut | Caucasian Grouse | Crested Partridge |
|---|---|---|
| Nom scientifique | Lyrurus mlokosiewiczi | Rollulus rouloul |
| Ordre | Galliformes | Galliformes |
| Famille | Phasianidae | Phasianidae |
| Statut de conservation | Near Threatened | Vulnerable |
| Longueur | — | — |
| Envergure | 39,6 cm (15.6 in) | 27,2 cm (10.7 in) |
| Poids | 839,25 g (29.60 oz) | 250,5 g (8.84 oz) |
| Régime alimentaire | Eats buds, young shoots, and seeds of alpine plants; supplements diet with berries and insects … | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| Taille de la couvée | 2-13 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Habitats partagés
Caucasian Grouse only
Aucun(e)
Crested Partridge only
Aucun(e)
Song & Call Comparison
Caucasian Grouse
Males produce melodic, slightly gurgling 'woo-woo-woo' bubbling calls on alpine lek; softer than Black Grouse. Alarm is a harsh cackle. Caucasus endemic with less elaborate display than Black Grouse.
Crested Partridge
High-pitched, thin whistled 'seee' repeated persistently; metallic and insect-like. Males call from forest floor, rarely seen. Alarm is an explosive low grunt followed by rapid wing beats.
Geographic Range & Migration
Caucasian Grouse
Endemic to alpine meadows and rocky slopes in the Caucasus Mountains, at 1,700 m to treeline; found in Georgia, Armenia, Azerbaijan, and Russia.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Statut de conservation
Caucasian Grouse
Crested Partridge
How to Tell Them Apart
Caucasian Grouse
Male uniform velvety blue-black lacking white wing bar, with downcurved outer tail feathers forming lyre shape; small red wattle. Female finely barred buff-brown; lacks rufous tones of Black Grouse female.
Crested Partridge
Male is dark glossy green-black with vivid red-crimson erectile crest; red orbital skin; chestnut wings. Female is entirely bright emerald green with brown wings, red legs, and grey head; among …
About These Birds
Caucasian Grouse
A medium-sized Phasianidae grouse (~839 g) endemic to subalpine meadows and shrublands of the Caucasus Mountains. Males are wholly blue-black; females are barred brown. Feeds on alpine plants, berries, and insects. Near Threatened owing to hunting and habitat degradation at elevation.
Crested Partridge
A small partridge (~250 g) of family Phasianidae, males with vivid crimson crest and iridescent green plumage. Found in lowland tropical rainforests of Southeast Asia including Thailand, Malaysia, Sumatra, and Borneo. Forages on the forest floor for fallen seeds, fruits, and invertebrates. Vulnerable; dependent on primary lowland forest, heavily impacted by deforestation and palm oil expansion.