Ferruginous Partridge vs Sage Grouse
Caloperdix oculeus comparado com Centrocercus urophasianus
Side-by-Side Comparison
| Atributo | Ferruginous Partridge | Sage Grouse |
|---|---|---|
| Nome científico | Caloperdix oculeus | Centrocercus urophasianus |
| Ordem | Galliformes | Galliformes |
| Família | Phasianidae | Phasianidae |
| Estado de conservação | Near Threatened | Near Threatened |
| Comprimento | — | — |
| Envergadura | 28,3 cm (11.1 in) | 61,2 cm (24.1 in) |
| Peso | 210,5 g (7.43 oz) | 2100,0 g (74.08 oz) |
| Dieta | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Feeds almost entirely on sagebrush leaves and buds in winter; insects and forbs important in … |
| Tamanho da postura | 8-10 | 7-15 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Ferruginous Partridge
Sharp, staccato 'krik-krik-krik' calls from lowland rainforest; often given in duet. Alarm is a loud, rapid chattering rattle; contact notes between pairs soft and clucking.
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.
Geographic Range & Migration
Ferruginous Partridge
Resident in lowland rainforest of the Thai-Malay Peninsula, Sumatra, and Borneo. Found in flat or gently sloping lowland forest.
Sage Grouse
Resident in sagebrush habitat of the western United States and southwestern Canada. Found in semi-arid plains with Artemisia. Vulnerable.
Estado de conservação
Ferruginous Partridge
Sage Grouse
How to Tell Them Apart
Ferruginous Partridge
Rich ferruginous (deep rusty-orange) overall; upperparts black-and-rufous barred; flanks black boldly spotted white; bare red facial skin; underparts rufous-orange; one of the most vividly coloured Southeast Asian partridges.
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.
About These Birds
Ferruginous Partridge
A small partridge (~210 g) of family Phasianidae, with rich ferruginous (rust-red) plumage and spotted black-and-white markings. Inhabits lowland and foothill rainforests in Malaysia, Sumatra, and Borneo. Secretive, foraging on the forest floor for seeds and invertebrates. Near Threatened; associated with primary and tall secondary forest, declining with ongoing logging and land conversion.
Sage Grouse
Gralha-das-artemísias de 60–75 cm, a maior gralha da América do Norte, famosa pelas suas elaboradas danças nupciais nas artemísias do oeste.