Willow Grouse vs Crested Partridge
Lagopus lagopus comparado com Rollulus rouloul
Side-by-Side Comparison
| Atributo | Willow Grouse | Crested Partridge |
|---|---|---|
| Nome científico | Lagopus lagopus | Rollulus rouloul |
| Ordem | Galliformes | Galliformes |
| Família | Phasianidae | Phasianidae |
| Estado de conservação | Least Concern | Vulnerable |
| Comprimento | — | — |
| Envergadura | 39,1 cm (15.4 in) | 27,2 cm (10.7 in) |
| Peso | 595,4166666666666 g (21.00 oz) | 250,5 g (8.84 oz) |
| Dieta | Eats willow and birch buds, catkins, and shoots in winter; berries, seeds, flowers, and insects … | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| Tamanho da postura | 3-14 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Willow Grouse
Loud, laughing 'kow-kow-kow-karrr' cackle from males on tundra; raucous and carrying. Alarm is a sharp repetitive 'kek'. Female gives low clucks near nest; male produces barking territorial call.
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
Willow Grouse
Circumpolar breeder in Arctic and boreal tundra of North America, Europe, and Asia. Winters south to temperate grasslands and shrubland.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Estado de conservação
Willow Grouse
Crested Partridge
How to Tell Them Apart
Willow Grouse
Winter: entirely white except black tail; summer male: rufous-chestnut head and breast, white belly and wings; red eye-comb; feathered white feet year-round. Seasonal plumage change is pronounced.
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
Willow Grouse
A perdiz-branca-dos-salgueiros é uma ave das tundras do Ártico e boreal que fica completamente branca no inverno para camuflagem na neve, mudando para plumagem maculada no verão.
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.