"BTIZ" wrote in message
newsa4bf.2746$zu6.38@fed1read04...
There was an article in outdoor magazine last summer about how high birds
fly and it mentioned their O2 ability to "recirculation" to get max 02 and
that migrating birds do change altitude based on headwind/tailwind

I once dodged, not that I moved much other than flinching, a soaring
raptor at FL210 in SW Wyoming. I was in a B-52 and the co-pilot and I both
saw it.

In response to another posting in "how do they know what it was?", yes,
they do take DNA samples from evidence left behind, along with tell tale
feathers etc. Had to do that one night after missing a snow owl on a ILS
approach. He left a grease trail and some feathers down the side of the
B-1.

BT


They don't actually pay you to fly those incredible planes so they?

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DW