What witnesses describe

The whole figure was seen.

Part of a figure was seen — a head, arm, or shape behind cover.

A figure was seen crossing a road, usually from a vehicle.

An outline against light or sky, without detail.

Eyes reflecting a light source at night.

A voice-like sound not otherwise classified.

A long, sustained call.

A loud, high-pitched cry.

A short, rising call, often repeated.

Rapid, speech-like sounds.

A low, rumbling sound.

A whistled call.

Knocking, as of wood struck against wood.

Heavy steps or bipedal walking heard nearby.

A sound the witness could not place.

Footprints or a trackway.

A hand impression on a surface.

Hair or fur attributed to the subject.

Droppings attributed to the subject.

Biological material other than hair or scat.

Arranged branches, shelters or beds.

Snapped trees or limbs, often high up.

Saplings or limbs twisted rather than snapped.

Skin-ridge detail reported in a print.

Rocks thrown toward or near the witness.

Sticks or other objects thrown.

Knocking, pushing or looking in at a building.

A vehicle was touched, struck or followed.

Things moved, taken or damaged around a home or camp.

A strong or unusual smell.

Something large moving, not clearly seen.

Dogs, livestock or wildlife reacting unusually.

A traditional or legendary account.

An account from historical records.

The source raises the possibility of a hoax.

The source or witness considers a known animal or person.