The song of Common hawk Cuckoo is the symphony of spring.."brain fever....brain fever". The bird sings that song...most of you have heard..but how they produce a sound!! a song!!! I'll share a note on that in next month..
Photographed in my village in West Bengal.
Canon EOS 7D + Canon 500mm f4 + Monopod
ISO 500, 1/320, f5.6, EC +0.3, small crop from left and bottom.