Winterfinch is a horse owned by Beonin Marinye.
Winterfinch is a stocky, brown mare. She is not very fast.
Winterfinch carries Beonin to Tar Valon and the White Tower through a gateway from the Rebel Aes Sedai camp. Both Beonin and Tervail Dura, riding Hammer, were sneaking back to the Tower after Egwene al'Vere had been captured.