A beautiful Himalayan bird is changing its voice due to human activity, research shows

What the report says

BBC World News reports that two studies by Indian researchers suggest the Himalayan monal, a pheasant native to mountain forests in the Himalayas, is being affected by growing human activity. The bird is culturally important in the region and is the state bird of Uttarakhand in India and the national bird of Nepal. Researchers say expanding infrastructure, tourism and noise are pressuring its habitat and changing how it communicates.

One study found the monal is being pushed to higher elevations as alpine meadows become more crowded, while climate change may further shrink and fragment suitable habitat across the Indian Himalayas over time. The second study examined bird calls in two valleys in Uttarakhand’s Kedarnath Musk Deer Sanctuary, comparing a busier tourist area with a quieter site. The researchers recorded more than 700 calls and found that birds in noisier places tended to use higher-pitched, shorter calls, which they interpret as a behavioral response to human noise rather than a permanent change.

Lead researcher Rajeev Lochan said the monal is useful for tracking ecosystem health because of its limited range and seasonal movement between mountain zones. Other experts quoted in the article said the findings may be a warning sign for more sensitive species in the Himalayas. The studies are preliminary, but together they point to wider ecological stress in a region facing rapid development, tourism growth and climate pressure.