Birds are one of the most amazing creatures in nature which can fly. They start off their day with a morning raga and complete with a lullaby. Each bird has its own specialized skills, behavior, food, nesting habits & parental care etc. Watching them is a great fun and can be developed into a hobby too.
They make the place very lively and happening with their flying around, chirping, weaving designer nests, feeding & training the young ones etc.
They play a crucial role in the food pyramid.
They check on the insect population, in turn protecting the crops and plants in their vicinity.
Creating a garden which supports them would be a much nobler thing where several varieties are at the brink of extinction.