Context:
A study has found that some barn swallows in Manipur’s Imphal Valley have stopped long-distance migration and are now breeding locally throughout the year. The finding highlights how birds may alter migration and nesting behaviour due to ecological and human-induced changes.
- Barn swallow is a small passerine bird scientifically known as Hirundo rustica.
- It is a widespread migratory species, usually breeding in temperate regions and migrating to warmer areas during winter.
- In India, barn swallows are generally winter visitors, but some populations are now showing resident breeding behaviour.
- The Manipur study suggests a shift from migratory trait to sedentary trait in parts of the Imphal Valley.
- Possible reasons include climate change, land-use change, urbanisation, suitable nesting sites and year-round food availability.
- Barn swallows are insectivorous birds, so their presence can indicate ecological changes in insect populations.
- The study is important for understanding avian migration, behavioural adaptation, speciation, subspecies variation and ecological plasticity.
La Excellence IAS Academy, the best IAS coaching in Hyderabad, known for delivering quality content and conceptual clarity for UPSC 2026 preparation.
FOLLOW US ON:
â—‰ YouTube : https://www.youtube.com/@CivilsPrepTeam
â—‰ Facebook: https://www.facebook.com/LaExcellenceIAS
â—‰ Instagram: https://www.instagram.com/laexcellenceiasacademy/
GET IN TOUCH:
Contact us at info@laex.in, https://laex.in/contact-us/
or Call us @ +91 9052 29 2929, +91 9052 99 2929, +91 9154 24 2140
OUR BRANCHES:
Head Office: H No: 1-10-225A, Beside AEVA Fertility Center, Ashok Nagar Extension, VV Giri Nagar, Ashok Nagar, Hyderabad, 500020
Madhapur: Flat no: 301, survey no 58-60, Guttala begumpet Madhapur metro pillar: 1524, Rangareddy Hyderabad, Telangana 500081
Bangalore: Plot No: 99, 2nd floor, 80 Feet Road, Beside Poorvika Mobiles, Chandra Layout, Attiguppe, Near Vijaya Nagara, Bengaluru, 560040
Barn Swallow Migration Shift and Ecological Adaptation