Back in my younger days, there was a television program which tried to teach kids about science, nature and society, it was called The ABC Afterschool Special. It ran for over twenty years and won all kinds of Daytime Emmys for their outstanding work. The first episode that I watched was the inaugural episode about man's role in the extinction of native species of animals. The episode was called The Last of the Curlews which was adapted from a successful novel from the 60's by Fred Bodsworth. I was eleven years old at the time of its airing, and it made a die hard environmentalist out of me. I was surfing YouTube and came across the whole film and wanted to share it with everyone. It's only about 45 minutes long and is really a very moving story, give it a look. I hadn't seen this in 39 years, but was amazed at how many images from this film still lingered in my mind.
A WARNING: This will have you bawling like a baby at the end.