How to identify the Linnet

To correctly identify the Linnet (Carduelis cannabina), 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

12.5-14 cm

Wingspan

21-25 cm

Weight

15-22 g

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Overall streaky brown plumage. Males in breeding plumage have a distinctive crimson forehead and breast, grey nape, and white belly. Females and non-breeding males are duller, lacking the crimson, with a buffy-brown head and streaked underparts. Both sexes have a white patch on the outer primaries and white edges to the tail feathers, visible in flight.

2. 2

   Beak shape

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

   Small, conical, and pointed bill, adapted for cracking seeds. Greyish-horn color.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Dark brown

4. 4

   Leg color

   Leg and foot color.

   Dark grey to blackish-brown

5. 5

   Distinguishing features

   Standout features that separate this species.

   Small size, streaky brown plumage, white wing patches (especially visible in flight), and the male's crimson head and breast in breeding season. Its relatively long tail and undulating flight pattern are also characteristic.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles are heavily streaked brown all over, including the head and underparts, lacking any red or grey. They have a buffier tone than adult females and their streaking is often coarser.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   Males undergo a significant change for the breeding season, developing the vibrant crimson on the forehead and breast. This coloration is largely absent in non-breeding plumage, where they resemble females more closely, though often retaining a hint of pinkish wash on the breast.

8. 8

   Sexual dimorphism

   How males and females differ.

   Pronounced during the breeding season when males develop bright crimson on the forehead and breast. Females and non-breeding males lack this coloration and are generally duller and more uniformly streaked.

Key field marks

• Size and Shape. A small, slender finch with a relatively long tail and a small, conical bill.
• Plumage (Male Breeding). Look for the unmistakable crimson-red forehead and breast, contrasting with a grey nape and streaky brown back. White wing patches are visible in flight.
• Plumage (Female/Non-breeding Male). Overall streaky brown, with a buffy-brown head and heavily streaked underparts. The white wing patches are still a key feature in flight.
• Flight. Observe its characteristic undulating flight pattern, often revealing the white patches on the wings and tail edges.
• Habitat. Often found in open, scrubby areas, heathlands, and agricultural margins with hedges and bushes, rather than dense woodland.
• Vocalizations. Listen for its distinctive, rapid, and melodious warbling song, and its dry 'chit-chit-chit' or 'tweeet' calls.

Explore the Linnet