<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by RichardInSF:
One can NEVER have enough airplane tugs! So what does an ornithologist (as you describe yourself) do at such a trade show? Wait, I know -- you keep the birds off the runway!

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Ding - point to
RichardInSF 
But we tell people how to keep birds off, rather than doing it ourself!