I’ve done those quests every day for months for gold and I’ve not been combat bugged with them a single time. Those birds do get stuck following you across the entire zone, but I’ve never had one keep me in combat whilst following. Weird
It is kinda bugy behaviour I ve noticed with my warlock. It is all about pet. I think, that if you start running away from a mob that has YOUR PET as a aggro-target, they will not stop, even if you dismiss the pet.