A Bronze Buckler can parry 90(100,110) a 0 star wolf does 70, so yes.
However it's block is only 45 so you can't block a 0 star wolf with it.
As to parrying starred wolves its dependent on your block skill, as each lvl increases the block by .5% (so by 1% since the parry of the bronze buckler is x2).

However H&H will be out within the next month reworking shields so this may all change.