"Towhee" Natural Recordings by Native Speakers
The towhee is a medium-sized, sparrow-like bird native to eastern and central North America. It is known for its distinctive call, which sounds like a loud, guttural "peter, peter, peter" followed by a repetitive "tick, tick, tick" phrase.
There is also a phrase "to tow the line," which means to do what is required or expected of you.