Our Purpose of Existence?

According to an Estimate there are 300 billion of birds living all over the planet and consider that every one individual bird is taking an average of 80g of food daily then 240 million tons of food is eaten only by birds of the world daily while we humans consume an average of 1.5 kilo food per day, then as a species we are consuming 9.8 million tons of food daily! which is nothing compared to the food consumed by birds as a kingdom of nature. NOW think for a second that we quarrel and kill and plan conspiracies and blockade the transfer of rations to nations just to get more then our share form that 9.7 million tons of food but you will never see two birds fighting for food yeah they compete but they never fight but they get 240 million tons of food!!!! there are somethings that after realizing their stupidity i feel ashamed of being a human! i am sure we are born to do more then competing for biological survival and for its sake inventing new mechanisms!