The term 'Chickadee Relative' can be solved by two crossword solutions: TITMOUSE (8 letters) and Tit (3 letters). Titmice are small birds that belong to the Paridae family, which also includes chickadees. They are found in wooded areas throughout North America, Europe, and Asia. Titmice are known for their distinctive call and for their habit of storing food in crevices and bark. The Tit is a smaller bird that is closely related to the TITMOUSE and is found in the same regions.