Ferruginous Partridge vs Red Grouse
Caloperdix oculeus compared with Lagopus scotica
Side-by-Side Comparison
| Attribute | Ferruginous Partridge | Red Grouse |
|---|---|---|
| Scientific Name | Caloperdix oculeus | Lagopus scotica |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Near Threatened | Not Evaluated |
| Length | — | — |
| Wingspan | 28.3 cm (11.1 in) | — |
| Weight | 210.5 g (7.43 oz) | 583.125 g (20.57 oz) |
| Diet | Eats seeds, invertebrates, and small fruits on floor of Southeast Asian lowland and hill forests. … | Highly dependent on heather shoots and flowers year-round; also eats berries, seeds, and insects in … |
| Clutch Size | 8-10 | 6-9 |
| 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.
Red Grouse
Distinctive 'go-back, go-back' cackle; male territorial call loud and raspy on Scottish heather moor. Alarm is explosive 'kek-kek'. Male gives hoarse crowing display calls.
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.
Red Grouse
Endemic to heather moorlands of Scotland, northern England, and Ireland. Resident year-round. Often treated as a subspecies of Willow Grouse.
Conservation Status
Ferruginous Partridge
Red 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.
Red Grouse
Does not turn white in winter; male is rich chestnut-brown with red eye-comb; finely barred darker on back; belly dark brown; legs feathered white. Female paler and more finely barred …
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.
Red Grouse
A medium-sized grouse (~585 g) of family Phasianidae, endemic to the British Isles with rich chestnut-red plumage and red eyebrows. Inhabits open heather moorlands across Scotland, northern England, Wales, and Ireland. Feeds almost exclusively on heather shoots and berries. Not Evaluated as a distinct species by IUCN (often treated as subspecies of Willow Grouse); an iconic game bird of British uplands.