Were Balrogs winged?

[Mister Underhill]

Dread Horseman
Posts: 570
Re: Whoa!

Surely this quote has come up before, somewhere, but I haven't seen it brought up in connection with this debate and I didn't see it in a quick scan back through this thread:

Thus they roused from sleep a thing of terror that, flying from Thangorodrim, had lain hidden at the foundations of the earth since the coming of the Host of the West: a Balrog of Morgoth.

From RotK, Appendix A, Pt. III

What say ye non-wingers to this quote?