The article covers the identification of the four common swallows in India: Barn Swallow, Red-rumped Swallow, Wire-tailed Swallow and Streak-throated Swallow. While talking about the differences in their features and distribution, the authors narrow down how the species can be identified.
Image: Lakshmikant Neve, Hiren Khambyata, Aseem Borkar, Arvind Khanna, Vivek Saggar, Nishad Eshaal, Bhaarat Vyas, Srinivas Mallela, Srinivas S, Afsar Nayakkan
https://birdcount.in/identifying-swallows/