How to Read Animal Tracks

A line of small round prints in snow, like the photo, is a record, not a species. Count what you can see, then stop. The printable track sheet is a place to write that description. This page is the decision of how far the print lets you go.

Stand beside the clearest print. Do not step in it. Note the surface, the direction of the line, and whether the feet land one after another or in pairs. Put a coin or a finger beside one print for scale, then photograph that one print and the line. Old prints widen as snow melts, so a soft edge is part of the note. The National Park Service rule for watching wildlife still applies: do not follow the line to an animal, a den, or a nest.

A clear canine print shows four toe pads and claw marks in front of them. Dogs, coyotes, and foxes share that pattern. Size and the shape of the heel pad can separate them when the print is sharp and you know the local animals. A melted or partial print does not.

If you cannot see all four toes, or the claws are only dents, write canine and stop. A neighborhood path full of dog walkers makes dog the common answer and still not a certain one. Leave the print. Leave No Trace means the track, and any scat beside it, stays where it is.

A cat print often shows four toes and a heel pad, with claws pulled in, so the claw marks are missing. House cats and wild cats share that look. Without a sharp print and a scale you trust, the honest label is cat.

A print the size of a large dog with no claws is a reason to write the size and stop, not to announce a wild cat. One unclear print is not that animal.

A deer print is two curved halves, like a split heart, pointed in the direction of travel. Other hoofed animals can leave a similar mark. Snow and mud widen the split until it looks like two ovals.

If the edges are soft, write hoofed and stop. Do not follow a fresh line into cover. The animal may be bedded a short walk ahead, and the watching-wildlife rule is distance, not a closer look.

A five-toed print that looks like a small hand can be a raccoon. An opossum hind print has a thumb that sticks out to the side, which is the detail that separates them. If you only found the front print, or the snow ate the toes, write five-toed and stop.

Count the toes you can actually see. Four clear toes are not five. A smear with a hint of a thumb is not an opossum.

Rabbits and squirrels often move in bounds, so the prints land in pairs or in a cluster of four. A rabbit set is often two small front prints and two longer hind prints. A squirrel set can look similar, with the hind feet landing ahead of the front feet.

If the cluster is a row of round dots and you cannot tell front from hind, write bounding small mammal. The photo on this page is that case: round prints, a line, and not enough toe detail to choose. That uncertain note is a finished observation. Guessing squirrel because squirrels are common nearby teaches the wrong animal.

iNaturalist takes one organism at one time and place. A photo of a track line can be evidence of an animal when you say it is a sign, add the date and the place, and use a coarse name such as Mammals if that is all the print supports. A species name you cannot defend does not belong on the upload.

In the journal, keep the sentence you can prove: surface, toe count, claws or not, pairs or a single file, and the label you stopped at. Next time you find a clearer print, compare it with this note instead of starting the guess over.