Ferruginous Partridge vs Sage Grouse
Caloperdix oculeus comparado con Centrocercus urophasianus
Side-by-Side Comparison
| Atributo | Ferruginous Partridge | Sage Grouse |
|---|---|---|
| Nombre científico | Caloperdix oculeus | Centrocercus urophasianus |
| Orden | Galliformes | Galliformes |
| Familia | Phasianidae | Phasianidae |
| Estado de conservación | Near Threatened | Near Threatened |
| Longitud | — | — |
| 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 … |
| Tamaño de la puesta | 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 conservación
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
Urogallo de las artemisas de 60–75 cm, el urogallo más grande de Norteamérica, famoso por sus elaboradas danzas nupciales en las artemisas del oeste.