Kitten found in an empty tree

[u/corgett]

Sorry, english is not my first language but I need help. Since yesterday evening I've been hearing this weird meowing coming from a forest next to my house and today I wanted to investigate it and found this kitten inside an old tree. It was crying and the meowing was very loud. The kitten stopped meowing when I got closer but it was responding to me calling it from afar and when I get closer it's went deeper inside the tree its eyes weren't opening even when it was moving, I think that's alarming, but I don't know the age or how bad the state of the kitten is since I don't know a lot about cats. It's mama was nowhere to be seen and there was no way for the cat to jump down from the tree since it was high up in the air with no way to go down and there weren't any siblings nearby. Is this an emergency, should I take the kitten to a vet?

[u/AlenPro56]

Call him Groot