[Riley]

They're flying IFR.

"I Follow Roads".

[Howie66]

So just what did they do BEFORE there were roads?

[Young Werther]

A Scientific American article, some years ago, described an experiment where they determined how a particular specie of bird migrated from North America across the Caribbeane (sic) to northern South America. The scientists placed these birds in bowls with a top dome which had star patterns. They were confined and their bio clock was fooled by a day night cycle which waw not the usual 24 hours. Since these birds will migrate during "mating season" their genetalia were measured to determine if they were ready to head south. You see a bird's gonads are abour 1% of body weight during the "off season" and 5% during the rut!!!

Well when their clock had been reset they were provided a star field on the bowl above their head. As the birds tried to jump for liftoff their tracks were recorded on carbon paper on the sides of the bowl. It was evident that their attempts to migrate were influenced by the star field, (and their gonads!!!)

Maybe they stop at road houses along the way but......

I know this post will get many of you freepers hot and bothered but if your gonads grow to 5% of your body weight don't say I didn't warn you heh! heh!

[expatpat]

IFR -- LOL. Actually, umless its a freeway, it's not difficult to get confused about which road is which if you use this kind of IFR. Of course, the birds are flying lower....