Birds Are An Ecological Litmus Paper.

We Don't Have To Go To Wild Places To Find Wildlife. A Surprisingly Wide Range Of Species Can Be Found In Our Sities And Towns, From Familiar Animals Like The Raccoon To More Exotic Ones Like The Mountain Lion.

Vultures Are Homely, But They Clean Up All The Garbage And That's Good. And They're Elegant In The Sky.

The Other Creatures With Which We Share This World Have Their Rights Too, But Not Speaking Our Language, They Have No Voice, No Vote; It Is Our Moral Duty To Take Care Of Them.

Birds Have Wings; They're Free; They Can Fly Where They Want When They Want. They Have The Kind Of Mobility Many People Envy.

Birds ... Are Sensitive Indicators Of The Environment, A Sort Of "ecological Litmus Paper," ... The Observation And Recording Of Bird Populations Over Time Lead Inevitably To Environmental Awareness And Can Signal Impending Changes.