What colour is Legolas` hair?

[Oddwen]

Now 'tis indeed strange, for reading the Unstarted Tales the other day I found this passage concerning Elmerf's and Yosmitë's leveret:

Suddenly into view came a white horse...running swiftly.
The rider's cloak streamed behind him, and his hood was thrown back; his golden hare streamed behind him in the wind of his speed.

(emphasis mine)

Now indeed, could this be the hare of which Nilpsy spoke of? And if it was indeed

Streaming behind him in the wind of his speed

could that indeed mean that the hare was flying, and had wings?