The Fungus Amungus

Bob and I are diving into a new project at home.  Since we don't have any extensive road trips planned, other than to visit some MN State Parks, we are tackling some stay-at-home projects.
As you have seen in previous pages, we have a great little travel trailer that we love.  It has weathered 2 winters of snow and cold and ice.  We are going to give it a better home by constructing a detached double garage with enough height for the trailer.  "We" are not going to do the constructing ourselves, but we are getting some estimates to do all the stuff that it takes to safely put this building together.  
Step 1 in the preparation, clearing the site, is something we can almost do all for ourselves.  There are about 15 trees and an old woodshed that will be effected.  We started on the woodshed and that is plenty for right this week.  It was getting decrepit, but it was something that Bob had built without a plan about 30 years ago.  We did burn a lot of wood for about 20 of those years, using our woodburning stove as an excellent heat source for the house.  So the shed has served its purpose, keeping a roof over some of the wood.  More wood was stacked outside.  Now, we are tearing down the shed and moving all the stacked wood to a nearby spot.  A bunch of that wood has become very wet, and as I remove logs, I have come upon some picturesque gardens of fungus of various kinds.  I'm not going to name them for you, but if you know what they are, I wouldn't mind knowing.
Also uncovered a mouse nest yesterday with babies that didn't even have eyes open.  We left them alone for a bit, and the momma moved them to a new spot.  Unfortunately, I came across that spot today, and scared her so badly that she jumped onto the chunk of wood in my hand and ran right up my arm!  She quickly realized that this was the wrong direction and leaped to the ground.  Again, we found some babies, just 2 this time, so we left her alone and she gathered them up and hid them somewhere else.  Where will we find them next?!
Bob will be able to chainsaw a number of the trees that aren't oaks and aren't huge.  We are in an area hit by oak wilt, a tree killer that spreads when the tree is cut or trimmed.  We have already lost many (30-40) trees to oak wilt.  So I think we will have to wait until September, possibly, to disturb the red and white oaks. There is one very large red oak, one of the tallest trees on our land, that might have to go.  We had a tree guy come take a look at it, and told us it would be $2400 to remove that one tree!  So we may be able to come up with a plan that will protect it by sliding the new building and driveway over a few more feet.  
Oh - if anybody needs some firewood, we have some to share!