The Tree Squeek is an animal from the forests of the emerging United States from the 19th and early 20th centuries. The Tree Squeek lives in the high branches making a long screeching sound:
“ squeaky, screech, screech or screechy, squeaky, screech or screechy, squeak or squeaky, screechy, squeak”
This is the sound of the Tree Squeek. There is very little description of what the creature looks like as its back is covered in bark causing it to camouflage with the tree.