Question

What is the scientific reason behind birds’ migration?

Answer 1

Hint: The migration of birds often occurs in the north-south direction. These migrations mainly occur between breeding and wintering grounds.

Complete answer:
The word ‘migration’ is an English word that literally refers to the movement from one part of something to another. When we talk about the migration of birds, we refer to the movement of birds from one part of the earth to another part of the earth.

This happens when conditions at the breeding site become unfavourable for the birds. Generally, it happens when the weather gets too cold for the birds. At this time, the birds fly thousands of kilometres to reach warmer places on the earth. Most birds usually travel from the Arctic region to the tropical region during the winters. During summers, the tropical regions get extremely hot and the birds prefer returning back to their homes in the Arctic region.

Another kind of migration that is seen in birds is vertical migration. In this type of migration, a bird resides in lowlands during the winter season and migrates to higher regions of a mountain during the summer season.

The scientific reason behind the migration of birds is their desire to find the best climatic conditions and habitats to feed, breed and raise their offspring.

Note: Migration by itself is a very perilous journey for birds and human activities make it worse for them. When humans cut down forests, we only think about the animals that used to live in that area. We do not think about the migratory birds who would come to spend their winters in that place and will not find the forest anymore. These places also act as resting stops during their migration.