Himalayan Monals Raise Their Calls Amid Noisier Uttarakhand Habitats

The Himalayan monal is a colorful bird and Uttarakhand’s state bird.

Scientists listened to monal calls in two Himalayan valleys.

One valley was quiet, while the other had roads, vehicles, tourists and pilgrims.

In the noisier valley, the birds made calls with higher sounds.

Their calls were also slightly longer.

Scientists think the birds may be trying to make themselves heard over human noise.

This does not mean noise is harmless or that the birds can adapt forever.

More research is needed to understand how the change affects their lives.