Backpacked pigeons report for smog duty

If you live in northern California and see pigeons wearing tiny backpacks don't worry -- you are not hallucinating.

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<p><a href="http://www.physorg.com/news74445488.html">Backpacked pigeons report for smog duty</a></p> <p>If you live in northern California and see pigeons wearing tiny backpacks don't worry -- you are not hallucinating. </p>