Whodunnit?

These canid tracks are not from my Labs.   

From my field guide there is this.   

Tracks:  forepaw 2¼ inch long, round to slightly oval, hind paw slightly smaller; straight line of single tracks; hind paws fall near or directly onto fore prints (direct register) when walking, often obliterating the forepaw tracks,  12-15 inch stride when walking.  

Yup - yote.