Birds Have Wings; They're Free; They Can

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.

I Can Recognize The Calls Of Practically Every Bird In North America. There Are Some In Africa I Don't Know, Though

Birding, After All, Is Just A Game. Going Beyond That Is What Is Important.

More Birds Have Adapted To A Changing World Than Have Failed. Very Few Have The Narrow Tolerance Of The Ivory-billed Woodpecker Or The Bachman's Warbler.

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