Question

what is the scientific reason behind birds migration​

Answer 1

Answer:

• THE SCIENTIFIC REASON BEHIND MIGRATION OF BIRDS ARE THAT THEY CANNOT CHANGE THEIR TEMPERATURE ALONG WITH OUTSIDE TEMPERATURE AND WITH THE CHANGE IN OUTSIDE TEMPERATURE, THEIR BODY TEMPERATURE FLUCTUATE.
• HENCE , TO PROTECT THEMSELVES FROM SUCH HARSH SUMMER OR WINTER CONDITIONS, THEY GO FOR MIGRATION.

HEY MARK ME AS BRAINLIEST.. PLS

AND ALSO FOLLOW ME