Himalayan Monal

Recent studies have highlighted how human-generated noise and climate change could affect the Himalayan monal, a striking high-altitude bird of the Himalayas.

The findings are significant because the species may be adapting its vocal behaviour to noisy surroundings, while climate change could alter the availability and connectivity of its suitable habitats.

About the Himalayan Monal

• The Himalayan monal is a colourful landfowl belonging to the pheasant family. 
• It is the state bird of Uttarakhand and the national bird of Nepal and is also known locally as Danphe or Monal.
• The bird is traditionally classified as monophyletic within its taxonomic grouping.
• The Himalayan monal is known for its striking plumage and a distinctive shrill whistle, sometimes described as curlew-like.
• It was also the mascot of the 38th National Games, giving the bird wider cultural and sporting visibility.

Habitat and Distribution

• The Himalayan monal is primarily a high-altitude bird, generally occurring between about 2,000 and 4,500 metres above sea level.
• It prefers open coniferous or mixed forests, particularly landscapes associated with rhododendron and bamboo.
• Its wider range extends across parts of the Himalayan region, including: India, Nepal, Bhutan, Pakistan, Afghanistan, Tibet & Myanmar.
• In India, it is found in parts of Jammu and Kashmir, Himachal Pradesh, Uttarakhand, Sikkim and Arunachal Pradesh.
• The bird also undertakes seasonal altitudinal movement. 
  • It moves towards higher elevations during summer and breeding periods and can descend to lower elevations during winter and heavy snowfall.
• This dependence on different elevations makes habitat connectivity particularly important under a changing climate.

Legal Protection

• Listed under Schedule I of the Wildlife (Protection) Act, 1972, providing it with the highest level of legal protection under India’s wildlife law.
• Globally, it is classified as Least Concern on the IUCN Red List.

However, a global Least Concern status does not mean that every local population is secure. Reliable information about local population trends remains important for effective conservation.

Major Threats

1. Human Disturbance

Tourism, pilgrimage, road traffic and increasing human activity can disturb the bird’s natural habitat and acoustic environment.

2. Hydroelectric Power Development

Development of hydroelectric projects in Himalayan landscapes can alter habitats and contribute to fragmentation and disturbance.

3. Poaching

The Himalayan monal has historically faced hunting pressure. Its colourful crest feathers have been valued for decorative purposes, including use on men’s hats.

The crest has traditionally been associated with status and authority, creating an incentive for poaching.

4. Climate Change

Changes in temperature, precipitation and snowfall can alter the distribution of suitable habitats and force species to shift along elevation gradients.

5. Habitat Fragmentation

Roads, infrastructure and other development can divide continuous habitats into smaller patches, restricting the movement of the bird between suitable areas.

What did the recent studies find?

Researchers compared Himalayan monal calls in two areas of the Kedarnath Musk Deer Sanctuary — the relatively undisturbed Madmaheshwar Valley and the more heavily visited Chopta Valley.

Monals in the noisier Chopta Valley were found to produce calls with higher frequencies and greater amplitude.

This indicates that the birds can modify their vocal behaviour in response to their acoustic surroundings.

However, researchers have not yet established that these changes directly reduce breeding success.

This is important because monal calls have a role in communication and reproduction. Human-generated noise from roads, tourism and pilgrimage may potentially mask these calls, making communication between males and females more difficult.

Climate Change and Habitat Connectivity

A second study examined how climate change could alter the monal’s habitat up to 2100.

Some areas that are currently suitable could become unsuitable, while new suitable areas may emerge at different elevations.

The problem is that a species cannot benefit from a new suitable habitat unless it can reach it.

Fragmentation caused by roads, infrastructure and other human activities can interrupt movement between habitat patches. Therefore, conservation must focus not only on protecting individual habitats but also on maintaining ecological corridors and connectivity across altitudinal gradients.

Way Forward

The conservation approach should focus on managing human activity rather than simply eliminating tourism.

Important measures include:

• Noise management in heavily visited tourist and pilgrimage areas.
• Protection of habitats across different altitudinal zones.
• Maintaining ecological corridors and habitat connectivity.
• Careful environmental assessment of infrastructure and hydropower projects.
• Stronger monitoring of local populations.
• Prevention of poaching and illegal wildlife trade.
• Greater use of passive acoustic monitoring to track wildlife behaviour.
• Climate-sensitive planning for Himalayan tourism and infrastructure.

Exam Hook – Prelims

Consider the following statements about the Himalayan monal:

1. It is the state bird of Uttarakhand.
2. It is the national bird of Nepal.
3. It is listed under Schedule I of the Wildlife (Protection) Act, 1972.
4. It is generally found at high elevations in the Himalayas.
5. It is classified as Endangered on the IUCN Red List.

Which of the statements given above are correct?

Answer: 1, 2, 3 and 4 only.

Key Takeaway

The Himalayan monal shows how wildlife conservation is increasingly becoming a landscape-level challenge. Noise pollution, infrastructure, poaching and climate change can interact with each other, making habitat connectivity, responsible tourism and long-term ecological monitoring essential for conserving Himalayan species.