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He'll be scared, but ok. I'm sure as long as he can hear your voice he'll pay attention and not do anything silly. Mine used to do the same, I had to borrow a friend's backhoe and bucket once to get high enough up.
Crossing my fingers for Oaksley. 
Please let us know how he is. 
he drove an hour+ here to tell me he doesn't have a ladder, he's new to the job, he talked to a couple different animal control officers and looked it up in a book, and everybody said to put a bowl of wet food at the bottom of the tree.
are you effing kidding me? I put a bowl of wet food at the bottom of the tree before I called him.
I've already checked it a couple times. He hasn't budged off the little branch he's clinging too. The wind has picked up, the tree is blowing back and forth and he's clinging with his eyes squeezed half shut.
I did see this time that a bucket truck will reach it, so I'm going to call the tree guy next. Too bad it's a Sunday, or I'd maybe be able to catch him on a job...
I found 2 6" x 12' pine boards I forgot I had left over from building the barn. Screwed them together into 1 23' plank. Used my stepladder to add a few more feet and get it off the ground. Slid it as far up the tree as I could. It was very hard to maneuver alone, but I managed to get it within about 10' of him. When he saw it headed toward him he left the tiny branch he was clinging to and managed to get down to the board. I had to turn it sideways to get it up to him so he couldn't walk down it, but was kind of straddling it. So I slide it slowly down with him riding it about another 10 feet until it got stuck on a branch of a tree right next to the one he was on. Actually they're poplars ( I see papery white bark and my brain goes straight to birch). Anyway, that gave him a perch and me a chance to turn the plank flat again, and he walked the rest of the way.
What a relief. The wind was really strong with big gusts, so off and on the tree was swaying back and forth with him clinging to just a single, small branch. In all, he was up there almost 7 hours.
Anyway, he was all over me hugging, kissing and purring. Cuddled him for a while until he decided to start grooming some of the tree bark out of his tail. So I left him alone to walk the dogs and rest. Came back later to clean up; he was sound, sound asleep in his cubby at the top of the hay pile.
Animal control called last night for an update -- they found a tree guy who was ready to come out and get him down with a bucket truck. Luckily wasn't needed!
Good thinking!, and he is just the sweetest little thing.
Those poplars blow in the wind like crazy, I bet he sure was terrified.
Very glad everything worked out. 
Great thinking!!!! So glad you and sweet Oaksley are okay. Whew.
Oaksley, stay out of that tree! The first picture gave me vertigo just looking at it.
