How to identify the Cane

To correctly identify the Cane (Canis lupus familiaris), check each of these features. Birds can be tricky: habit, habitat, and call often confirm a sighting that a single photo cannot.

Size at a glance

Length

Highly variable, 15-100 cm (6-39 inches)

Wingspan

N/A (no wings)

Weight

Highly variable, 1-80 kg (2-176 lbs)

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   N/A (mammalian fur/hair, not feathers). Coat color and texture are extremely diverse, ranging from short to long, smooth to wiry, and colors including black, white, brown, red, fawn, and various patterns (e.g., brindle, merle, spotted).

2. 2

   Beak shape

   Shape and color of the bill: a key field mark.

   N/A (possesses a muzzle and teeth, not a beak). Muzzle shape varies greatly by breed, from brachycephalic (short-nosed) to dolichocephalic (long-nosed).

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Typically brown, but can be blue, amber, or heterochromatic (different colored eyes) in some breeds.

4. 4

   Leg color

   Leg and foot color.

   N/A (legs are covered in fur/skin, not distinctively colored like bird legs).

5. 5

   Distinguishing features

   Standout features that separate this species.

   Quadrupedal locomotion, fur-covered body, mammary glands, live birth, presence of teeth and a muzzle, lack of feathers or wings. Extreme diversity in size, shape, and coat type across breeds.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Puppies are smaller versions of adults, often with softer fur and disproportionately large paws or heads. Their coat color may change as they mature.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   Shedding of fur, particularly in breeds with double coats, can be seasonal. No plumage changes as it is not a bird.

8. 8

   Sexual dimorphism

   How males and females differ.

   Males are generally larger and heavier than females, but this can vary by breed. Secondary sexual characteristics are less pronounced than in many bird species.

Key field marks

• Physical Form. Observe the animal's overall body structure. If it has fur, four legs, a tail, and no wings or feathers, it is not a bird.
• Locomotion. Note how the animal moves. If it walks or runs on four legs and does not fly, it is not a bird.
• Vocalizations. Listen to its sounds. Barks, growls, and howls are characteristic of canids, not birds. Birds produce songs, chirps, calls, and squawks.
• Reproduction. If there is evidence of live birth and nursing young, it is a mammal, not a bird.

Explore the Cane