Scat Identification Key
Describe the shape, diameter, and end taper, and see which common track-makers fit best — with typical contents and placement to help confirm the match.
Closest matches
Typical contents: Fur, small bones, seeds, or berries depending on season
Typical placement: Prominently on trails, rocks, or trail junctions (scent marking)
Typical contents: Fur and bone fragments, segmented like a cat's
Typical placement: Often scratch-covered or partly buried (cats tend to cover scat)
Typical contents: Seeds, berries, insect parts — often visibly undigested
Typical placement: Communal latrines at the base of trees, on logs, or on rocks
Typical contents: Fur, insect fragments, and berries in season; often twisted segments
Typical placement: On raised objects such as stumps, rocks, or tussocks
⚠️ Never touch scat directly — it can carry parasites and disease. Identification from size and shape alone is approximate; diet, season, and the individual animal all change how a dropping looks.
Reading scat sign
Scat identification leans on three clues in order of reliability: overall shape (tubular, separate pellets, or a large clumped mass), diameter, and whether the ends taperto a point or stay blunt. This key scores a shape mismatch heavily, since it reflects a genuinely different digestive strategy, then ranks remaining candidates by how close the diameter and taper are to what’s typical for that animal.
Contents and placement (where the dropping was left, and how prominently) are strong secondary confirmation — a coyote or fox often leaves scat conspicuously on a trail or rock as a scent mark, while a bobcat typically scrapes to partly bury its own.
Frequently Asked Questions
Is it safe to examine scat closely?
Look, but don't touch. Scat can carry parasites (including roundworm eggs and, in canid scat, potentially Echinococcus tapeworm eggs) and other pathogens that survive in dried droppings. Examine it from a distance, with a stick if you need to disturb it, and always wash your hands after any fieldwork — never handle it bare-handed.
Why does shape matter more than size in this key?
Shape reflects the animal's whole digestive strategy and diet, which is far more distinctive than size alone. A carnivore's tubular, often tapered dropping, a browser's clustered round pellets, and a bear's large, loose seasonal pile look nothing alike even when their raw diameters happen to overlap, so this tool weighs a shape mismatch heavily before it even looks at diameter.
Why do rabbit and deer pellets get confused?
Both are round, plant-fiber pellets in a similar size range, so diameter alone can leave them close. Deer pellets tend to run slightly larger and more acorn-shaped, while rabbit and hare pellets are smaller and more uniformly round. Location helps too — deer pellets often turn up in beds or along browse routes, while rabbit pellets cluster near brushy cover.
Educational tool only. Never touch scat directly. Diet, season, and the individual animal all change size and contents, so treat any match as a lead to confirm, not a certain identification.