This episode is set in Hadinaru Kere, a lake outside Mysore in India. In the winter, the lake attracts a number of migratory birds. Some 85 species have been recorded in March 2023. This episode talks about the black-tailed godwit.
To understand the difference between black- and bar-tailed godwits, watch this comprehensive explanation by the British Trust of Ornithology
Here is a photographic explanation of the difference between the two.
And lastly, here is a pictorial representation.
Featured photo by Bob Brewer on Unsplash.