Sick to my stomache

So I am reading the front of MSN and its says mystery behind bird deaths solved. Turns out these birds were poisoned because there are too many. What does that mean? It made me so sad. Who the hell is anyone took take a life. In fact 300 lives. Animals were here before humans. They deserve to live too. Without an ecosystem we are gone. So for all you disgusting humans out there stop destroying nature!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Stop having a zillion kids, buying plastic water bottles and being greedy. There are too many humans. Do we go around poisoning them? MY husband would say yeah due to Chem trails. Anyways that's my vent. I am sad.