Dear, dear, dear. I guess you really haven't been following the conversation. Feathers were originally for insulation. Only later did they come in handy for flying.
The amazing thing is that there is so little evidence to trace birds to dinasaurs yet you buy into it without question or doubt. That is why I just don't think really see this as a scientific problem but more as a philosophy/religion problem. The alternative to evolution is quite simply an anethema. That was my biggest problem with just about all evolutionists, they simply follow the teaching like little drones, never question, never doubt, and never allow criticism. That is what this whole thread is about, the simple fact that a highly regard professor challenged the Holy Doctrine of evolution.
Regards,
Boiler Plate