Crow is not useful?

I was standing next to the house and the beautiful breeze was touching my body. At that time I could see a crow sitting in front of me with something in its beak. I thought it would be a good opportunity to photograph crows. I had plenty of time to take photos. The crow saw me and did not run away. I thought why he is not running away? I found the answer that the crow will not fly away until it has finished the food in its beak. So it happened. When the crow flew away after finishing the FOOD, I returned home. Anyway, thanks to the crow for letting me take so many photos. Crows are generally very fond of meat. Farmer's chickens, ducklings are crow's favorite food. So the farmers are in a lot of trouble with crows. Besides, crows eat a lot of crabs and it is also their favorite food.