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Step 1
Examine the print. The gray fox leaves a four toed print and sometimes, claw marks. Like dogs, there should be an "X" shape formed between the heel pad and toes and the two leading toes are side by side. Unlike dogs, the gray fox actually has partially retractable claws. The hind heel pad looks like an upside-down "V." The gray fox does not have furry feet like the red fox, so the prints are clearer. The average size of the foot print is less than 2 inches.
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Step 2
Measure the stride. The average stride of the gray fox is around 12 inches, but can range from 7 to 16 inches. Measure from the top edge of the aft track to the top edge of the fore track.
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Step 3
Count track groupings. The gray fox often leaves a 3 print grouping because only one of the hind feet lands on top of the front foot track. The overall shape of the individual prints should appear oval.
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Step 4
Measure the straddle. The width of the track is generally around 3 inches. Straddle width is a defining factor that can help you determine what type of animal you are tracking. The general gray fox straddle is 3 inches. To measure straddle, draw a stride line and then measure to the outside edge of the opposite track.







