I'm standing at yard bird 8 which I still need and it doesn't acknowledge it. Also #7 won't respond. Can't finish this quest... Can someone look into this?
Often there are two yardbirds per area. Be sure that you're going to both of them to get full credit.
In Vigrid Roughland, one is located in a back corner by the road to the boiling fields, and one is hidden high up a winding hill above the bears' village of Ander's Holt.
In Mirkholm Keep, one is hidden inside the wolf caves, standing on a shelf way in a back alcove. The other is tucked away in a tiny little cave deep inside the grendel's grotto.
Here's an illustrated guide showing you where they all are on the map.