Yesterday I saw an interaction between Shikra and two crows. The crows were trying to harass the Shikra. The crows were repeatedly trying to perch on a branch higher than the Shikra and defecate on it. Twice the Shikra tried to chase them away. But this continued for about five minutes, after which the Shikra flew away followed by the crows.
Since I was returning from office, I didn't have my camera and could not record this. Look forward to your views.