When El-ahrairah and Rabscuttle reach their home warren after their journey home from the abode of the Black Rabbit of Inle, they have an encounter with Lord Frith, who has some gifts for them (end of chapter 31):
I have brought a few trifles for you [El-ahrairah]. A pair of ears, a tail, and some whiskers...Ah, there is Rabscuttle coming back. Good, I have something for him, too.
But before we hear what Rabscuttle's gift was Hazel and the other rabbits listening to the story are interrupted by the approach of a fox.
Rabscuttle's gift seems important, but if there were any insights to be gleaned about its nature in either Watership Down or Tales From Watership Down, I missed them. Did I miss something?