I’ve often heard the strange call of the Common Hawk Cuckoo. To me, it sounds like ‘rain coming, rain coming.’ But to a British birdwatcher, it resembled the words ‘brain fever,’ and that’s how the bird got its English name — the Brain Fever Bird. Beyond its voice, the bird itself is striking — with a perfectly round-shaped head, a majestic look like a Shikra, yet a soft and gentle creature. Its beautiful eyes, ringed with yellow, give it a truly captivating charm. #tamil #birderstribe #BirdsOfI

Common Nighthawk Sounds, All About Birds, Cornell Lab of Ornithology