When I was young, we would go to my grandpa's place during summer school holidays. He used to go to the porch of his cottage every morning and call out to the c

When I was young, we would go to my grandpa's place during summer school holidays. He used to go to the porch of his cottage every morning and call out to the crows in a loud voice "kaaa... kaaa... kaaa...". They would be already in position on the branches of the surrounding trees. Never saw them approach the porch uncalled - excellent manners. The moment they would hear his voice, all would swoop in from various directions and start catching the pieces of bread he would toss in the air. Never saw any pieces hit the ground; no fights either. Once the pieces were gone, they would be gone too. It was a free daily aerial acrobatics show that I never got tired of watching.