Start with an observation

Which animal did you see?

Animal identification starts with several clues: where you saw it, its shape and markings, and how it behaved. Choose a starting point below, then compare the details in a sourced guide.

Five comparison routes to help you begin. This collection cannot identify every species or confirm an animal from a photograph.

By WARNLast updated8 September 2026

Start with what you noticed

Use the clue that fits your observation. The linked comparisons explain distinguishing features, photographs or labelled illustrations, size ranges and species exceptions.

Clue 01

A long-necked bird by water

Compare the bill, neck proportions and body shape.

Start with the mute swan and greylag goose examples. Other swans, geese, juveniles and domestic birds can look different.

Swan vs Goose

Clue 02

A spotted, long-tailed cat

Look at the face markings, spots or rosettes, and overall build.

The comparison covers two cats, not every spotted species. Location and several matching features matter more than one patch of coat.

Cheetah vs Jaguar

Clue 03

A large, heavy-bodied mammal

Use the head profile, snout and visible feet in a photograph.

The guide distinguishes common hippos from different rhino species. Water nearby or a grey hide alone is not enough to identify an animal.

Hippopotamus vs Rhinoceros

Clue 04

A camel-like animal with humps

Compare the hump count and coat, then check the species context.

A dromedary is a camel. This guide explains domestic Bactrian camels and dromedaries, with the wild camel treated separately.

Camel vs Dromedary

Clue 05

A large ape with long arms

Consider hair colour, body proportions and the location of the observation.

The photographs illustrate orangutans and gorillas. Their natural ranges differ; a zoo photograph needs its own location and species context.

Orangutan vs Gorilla

What to record before deciding

A useful observation separates what you actually saw from what you think it means. Write “orange bill with a dark base” before choosing a name. Keep a question mark beside uncertain features.

Place and date: Note the country or region, date and habitat. Was this a wild observation, a managed collection or an image with an unknown origin?
Shape and scale: Describe the body, neck, limbs and tail. Compare size with an object already in the scene; do not approach to measure the animal.
Markings and structure: Look for a bill, horns, coat pattern or distinctive face markings. A partial view may hide the most useful feature.
Behaviour: Record swimming, grazing, climbing or flying without treating one action as proof of identity. Note whether the animal was alone or with others.
The original image: Keep an unedited copy and its date and location if you have them. Record whether the picture is your own observation or someone else’s image.
What remains uncertain: Separate a likely animal group from a confirmed species. A local guide may narrow the possibilities more effectively than a worldwide list.

Check more than one explanation

Young animals, seasonal coats, domestic breeds and unusual viewpoints can complicate a match. A comparison page is useful for learning the differences between its named animals; it is not an exhaustive key to everything that could appear in a photograph.

Observe without disturbing

Use binoculars or a zoom lens, give animals space, and follow the rules of the place you are visiting. Do not lure an animal closer with food or calls. A better photograph is not a reason to approach, touch or disturb wildlife.

The US National Park Service’s wildlife-watching guidance explains why distance and local rules matter. Viewing distances vary by place and species.

Before you decide

Animal identification questions

How can I identify an animal if I do not know its name?

Record where and when you saw it, its body shape, distinctive markings and behaviour. Choose a likely animal group, compare several visible features, and check a regional guide. Keep the identification tentative when important details are missing.

Can these comparisons identify every animal?

No. This is a starting collection of five comparison routes. Each guide explains the animals it covers and relevant exceptions. For other animals, use the wider wildlife library or a suitable local field guide.

Can I upload a photograph for WARN to identify?

This page does not accept photographs or provide an automated identification result. Use the linked examples to compare visible features. A regional wildlife organisation or qualified field guide may be able to advise on a local observation.

Does seeing an animal near water identify its species?

No. Habitat is one clue. Use it alongside location, body shape, markings and behaviour. A single photograph may not show the features needed to distinguish similar species.

What if the animal appears injured or in danger?

Keep your distance and contact an appropriate local wildlife professional or authority. The rescue guides and independent organisation directory can help you find a suitable contact. WARN does not provide an emergency dispatch service through this identification page.

Keep learning and check your sources

The Wildlife Trusts’ identification guides offer a UK-focused starting point for birds, insects, marine wildlife and animal signs. Follow the sources in each WARN comparison for its specific facts. Families and teachers can also try our free orangutan activities, including a wildlife story source-checking exercise.