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Sri Lanka Junglefowl (Gallus lafayettii) vocal crowing: yellow comb spot and morning territory?

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Sarah Phasianid•920 rep

What acoustic parameters and visual comb displays characterize the dawn territorial crowing of Sri Lanka's national bird in wet-zone forest borders?

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4 Answers from travellers

✓Accepted Answer

The Sri Lanka Junglefowl (Gallus lafayettii / Wali Kukula) is an endemic phasianid and the national bird of Sri Lanka. Cock birds establish morning territory at sunrise by ascending low branch roosts and delivering their unmistakable territorial call: a sharp, explosive "Chawk-choyk-choyk" followed by rapid wing-clapping against the flanks. The dominant male displays a brilliant red fleshy crown comb featuring a prominent central yellow patch, along with orange-red hackles and iridescent violet-black tail feathers. The call carries over 800 meters across dense forest scrub, warning subordinate cocks to stay clear of harem feeding zones.

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Prof Gamhewage Bio•1940 rep

Hens display mottled cryptic brown plumage with pale breast barring, nesting in shallow ground scrapes hidden under dense bamboo scrub.

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Sarah Phasianid•920 rep

They forage actively on fallen fruit of Nelu (Strobilanthes), forest snails, and winged termites emerging after monsoonal downpours.

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Dr Bandara Wildlife•1880 rep

Genetic studies confirm that Gallus lafayettii is distinct from the red junglefowl (Gallus gallus), representing an ancient isolated island evolutionary lineage.

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Dr Wasantha Flora•1840 rep

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