Balder's Comments

I can confirm rare crows and rare glowflies exist.  I farmed for 3+ hours and had only 2 rare crows and 12 glowflies in that time.  Crows of differnet quality will join about 10-15% of the time with uncommons being about 10% of that and rares being like 1%.

There are 14 spawn points that are consistant on the island and if you farming alone the spawn rate will be almost perfect for you to continually encounter.  Please remember you can only get crows from glowflies above level 5 as adders to the fights. 

I have battled atleast 150+ and only uncommon quality. They are level 1-10 with 3 stat flavors that I can tell.  Yes, I have seen crows as adders multiple times and they can not be captured.  Battle info shows rares as possible can anyone confirm please?

The Pet Tamer Quest is a daily, I can confirm that.  I don't know what the drop rate is but I didn't get one in either of my first 2 bags.