Black Grouse vs Crested Partridge
Lyrurus tetrix compared with Rollulus rouloul
Side-by-Side Comparison
| Attribute | Black Grouse | Crested Partridge |
|---|---|---|
| Scientific Name | Lyrurus tetrix | Rollulus rouloul |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Least Concern | Vulnerable |
| Length | — | — |
| Wingspan | 48.1 cm (18.9 in) | 27.2 cm (10.7 in) |
| Weight | 1262.5 g (44.53 oz) | 250.5 g (8.84 oz) |
| Diet | Feeds on buds, catkins, and shoots of birch and other trees; berries and invertebrates are … | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| Clutch Size | 6-11 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
Crested Partridge only
None
Song & Call Comparison
Black Grouse
Males on lek produce liquid bubbling 'roo-oo-oo' cooing and explosive 'choo-ESH' sneeze calls; haunting at misty dawn. Alarm is harsh cacking. Display carries across moorland and bogs.
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
Black Grouse
Resident of moorland, bogs, and forest edge across northern and central Eurasia, from Britain east to Siberia and Kazakhstan.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Conservation Status
Black Grouse
Crested Partridge
How to Tell Them Apart
Black Grouse
Male blue-black with iridescent purple-blue gloss; bold white wing bar; white undertail coverts contrast with black lyre-shaped tail; red wattles above eye. Female mottled tawny-brown with faint barring.
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
Black Grouse
A medium-large Phasianidae grouse (~1.26 kg) of Eurasian moorlands and forest edges. Males are glossy blue-black with lyre-shaped tails used in communal lek displays on frost-covered arenas. Females are cryptically brown. Omnivorous; diet includes berries, buds, and invertebrates. Least Concern.
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.