The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

Bhubaneswar: At a time when urbanisation and habitat loss are threatening the survival of house sparrows, a schoolteacher in Malkangiri has taken it u.

white-throated sparrows, yellow-bellied sapsuckers, northern shovelers and buffleheads. In North America, birds typically fly south for the winter before food is less available during the colder ...