They all have some wings on their ears (seer has more that usual to make up for the lack of one on his back) this is because the spirt world is cold and ears get cold

Blue steves don’t use their wings to fly but more rather glide to help them traverse the sprit realm (reason why seers afraid of hieghts is because of he falls from something he can’t glide down to safety)

Before Colle, Puffin was Seers best friend. (Going off of the line from sl where seer says he has a friend who lives on either a mountain or hill)

And Seer was particularly talented at sorting out spirits issues and usually could predict what the issue was.