Source: TH
Subject: Species in News
Context: A newly photographed Great Nicobar Crake, possibly a new species of the Rallina genus, has been reported from Great Nicobar Island—only the third photographic record in over a decade.
About Great Nicobar Crake:
What it is?
- The Great Nicobar Crake is a medium-sized, potentially new Water Crake species (Genus: Rallina) found only in Great Nicobar Island. It may be endemic to the Andaman & Nicobar region and shows several morphological features not seen in known Rallina species.
Habitat:
- Lives in dense tropical rainforest undergrowth, including bamboo, vines, and cane thickets.
- Usually found near wetlands, streams, and forest-floor vegetation.
- Exhibits shy, elusive behaviour, making sightings extremely rare.
IUCN Status: Not yet officially assessed, but scientists suggest it may qualify as Data Deficient or Endemic–Near Threatened, following patterns seen in other Rallina crakes.
Characteristics:
- Physical Features:
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- Plumage: Rich reddish-brown (rufescent), browner back.
- Underparts: Bold black-and-white barring on belly and wing-coverts.
- Bill: Stout, pale green, uniformly deep, reddish tip.
- Social & Behavioural Traits:
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- Shy, ground-dwelling and fast-running; rarely flies.
- Moves silently through undergrowth; forages on insects and small invertebrates.
Significance:
- Indicates exceptionally rich biodiversity and high endemism of Great Nicobar Island (24% endemism in some faunal groups).
- Highlights ecological sensitivity of the area facing mega infrastructure development.
- Emphasises the need for strict conservation, long-term monitoring, and careful environmental assessments.
