Question

Discuss and write down two reasons why "Migratory birds migrate and return​

Answer 1

Answer:

Migratory birds fly hundreds and thousands of kilometres to find the best ecological conditions and habitats for feeding, breeding and raising their young. When conditions at breeding sites become unfavourable, it is time to fly to regions where conditions are better.

Explanation:

Answer 2

Answer:

Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources. The two primary resources being sought are food and nesting locations. ... As winter approaches and the availability of insects and other food drops, the birds move south again .