Kaji Sahab: Thank you for your suggestion. I will think about it how to get a life.
enGima  too: The example u have presented is outstanding. I wish I could be see the things like from the eye of that researcher.
Poonhill: I don't know the reason why but the professor was from geography department. It is unlikely that he has done something research taking bird as a experimental model. But it is likely that he might have taste the fried meat of pigeon !
mrhunter: Achainyo ko pir khukuri le ke tha !
Lakhe: You seem to be natural lover and know ecosystem better.

Thanks to all viewer