What is Blackwing?

[ti'esar]

Belkar also was likely pretending not to remember in order to be a jerk; he's feigned ignorance in order to mess with Roy more than once, after all! Durkon healed Blackwing but seems to have forgotten about this; his Int probably isn't that high though, so it seems likely enough that he just forgot it.

Actually, Rich has indicated that Durkon was in on the joke and Belkar was the one who had forgotten.

(And yeah, he also explicitly confirms that there was no big secret behind the party "forgetting" Blackwing).