Question

why does a bird make a nest​

Answer 1

$\huge{★Answer ↴</p><p></p><p>}$

●The part which you’re focussing on is probably “Why do birds build nests and not perhaps make burrows or some other easier, less laborious homes?”

Well, there are plenty of reasons, all answered by ecology, evolutionary biology and sociobiology. Here are three-

$\\ \large{a.) SHELTER:}$

Trees have a protective canopy that shields the birds from a lot of weather conditions like rain, sun and snow.

$\\ \\ \large{b.) ESCAPING PREDATORS: }$

Most predators of birds and their eggs are terrestrial, ground-bound animals like snake, wolf etc. If their homes are at a height, these predators cannot reach their homes and hence they are safe.

$\\ \\ \large{c.) REGULATING TEMPERATURE:}$

Nests are inherently well-ventilated due to the knitting and help regulate the temperature in the nest. This also helps egg hatching.

Hope it helps :)