Finally patience paid off , a perfect example of approaching towards bird with great caution and patience , without disturbing.
This image is made with 500mm f/4 and no crop.
The bird kept an eye on me whereas I kept slitering on the ground with very slow moment.
Short-eared owl(Asio flammeus)
Little Ran Of Kutch 2017, Gujarat
Canon EOS 7D M II , Canon 500mm f/4 IS L USM , 1/1000 , -0.3 , ISO-640 , Handheld , No crop.