IMO this thread demonstrates the effect that man has on the environment. When we see a little chick, we see a little ball of fluff, when a heron see a little chick, he sees dinner. Over millennia nature seeks a balance between prey animal and predators. If there were no predators then the prey animals would over populate and many would die a slow death through starvation, its sad but true, nature is red in tooth and claw. Sadly man comes along we destroy habitat, we kill animals for fun, we upset the balance of nature. We are far too far down the line to do anything about it now, but remember a fluffy little chick is also a dinner for someone else's little chick.