You are right about the Parrot quest. Unfortunately it is a very old quest and hasn't been updated to keep with the times. I've marked it down to update it (or at least temporarily disable it) for the next patch.
You are also correct about the Fisherman quests from Thanthor. I'll make sure they aren't available for Dragons.
If you know of others, please let us know and we'll try and get them fixed as soon as we can.