Hill Partridge vs Udzungwa Forest-partridge
Arborophila torqueola compared with Xenoperdix udzungwensis
Side-by-Side Comparison
| Attribute | Hill Partridge | Udzungwa Forest-partridge |
|---|---|---|
| Scientific Name | Arborophila torqueola | Xenoperdix udzungwensis |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Least Concern | Endangered |
| Length | — | — |
| Wingspan | 27.3 cm (10.7 in) | 28.8 cm (11.3 in) |
| Weight | 342.0 g (12.06 oz) | 207.25 g (7.31 oz) |
| Diet | Forages on Himalayan forest floor for seeds, invertebrates, and small fruits. Scratches leaf litter in … | Forages on floor of Udzungwa Tanzanian montane forest for seeds, invertebrates, and small fruits. Critically … |
| Clutch Size | 3-9 | 3 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Hill Partridge
Repeated melodic whistle 'wi-WHEEEOO' rising and falling; pairs often duet. Males sing from hillside undergrowth at dawn. Alarm is a sharp, emphatic 'kek' or staccato clucking.
Udzungwa Forest-partridge
Loud, clear whistled 'wheee-oo' calls from montane forest floor; haunting and infrequently heard. Alarm is a sharp explosive 'kek'; poorly known due to rarity in Udzungwa Mountains.
Geographic Range & Migration
Hill Partridge
Resident in the Himalayas and hills of India, Nepal, Bhutan, and southern China at 1,000-3,500 m. Found in oak and rhododendron forest.
Udzungwa Forest-partridge
Endemic to the Udzungwa Mountains of Tanzania. Found in montane forest at 1,000-2,000 m. Very poorly known; only two specimens collected.
Conservation Status
Hill Partridge
Udzungwa Forest-partridge
How to Tell Them Apart
Hill Partridge
Male has orange-rufous face, white-spotted black throat collar, grey breast, and chestnut flanks streaked white on dark brown back. Female has brown face with buff streaking, less vivid collar.
Udzungwa Forest-partridge
Brown above with fine black streaking and white shaft-streaks; red legs and bill; underparts paler buff-brown with dark-edged feathers creating scaled pattern; bare red facial skin around eye.
About These Birds
Hill Partridge
A medium-sized partridge (~340 g) of family Phasianidae, with intricate rufous, black, and white patterning and an orange-rufous head. Inhabits subtropical and montane broadleaved forests and bamboo thickets in the Himalayas from Pakistan to southwestern China. Forages on the forest floor for seeds, berries, and invertebrates. Least Concern; common in Himalayan foothills.
Udzungwa Forest-partridge
A small partridge (~205 g) of family Phasianidae, with brown-streaked plumage and red legs. Endemic to the Eastern Arc Mountains of Tanzania, restricted to Udzungwa and Rubeho mountain forests above 1,300 m. Forages on the forest floor for seeds and invertebrates. Endangered; one of Africa's rarest birds, confined to a tiny forest area threatened by agricultural encroachment and logging.