How to identify the White-breasted Nuthatch

To correctly identify the White-breasted Nuthatch (Sitta carolinensis), 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

13-14 cm (5.1-5.5 in)

Wingspan

20-27 cm (7.9-10.6 in)

Weight

18-30 g (0.6-1.1 oz)

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Upperparts are blue-gray, with a contrasting black cap and nape. The face and underparts are clean white, with a rusty wash on the lower flanks and undertail coverts. The wings are dark with lighter edgings, and the tail is short with white outer tail feathers visible in flight.

2. 2

   Beak shape

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

   Long, slender, and slightly upturned, dark gray to black.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Dark brown.

4. 4

   Leg color

   Leg and foot color.

   Dark gray to black.

5. 5

   Distinguishing features

   Standout features that separate this species.

   Its unique ability to walk headfirst down tree trunks, its prominent white breast, and the black cap contrasting with blue-gray back are key features. The long, pointed bill is also characteristic.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles resemble adult females but have a slightly duller plumage overall, with a less distinct black cap and a more muted blue-gray on the back. Their plumage is generally softer and less crisp.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   No significant seasonal plumage changes. Plumage may appear slightly worn by late summer before molting into fresh, brighter feathers in the fall.

8. 8

   Sexual dimorphism

   How males and females differ.

   Males typically have a solid black cap that extends to the nape, while females have a duller, often dark gray or brownish-black cap that may not extend as far back. The rusty wash on the flanks can also be slightly duller in females.

Key field marks

• Plumage. Look for the clean white underparts, blue-gray back, and distinct black cap. A rusty wash on the lower flanks is also a good field mark.
• Behavior. Observe its unique foraging style: walking headfirst down tree trunks and branches, a behavior rarely seen in other birds.
• Vocalization. Listen for its distinctive, nasal 'yank-yank' call or the rapid, whistled 'whi-whi-whi' song.
• Bill Shape. Note the long, slender, and slightly upturned bill, used for probing bark and hammering seeds.

Explore the White-breasted Nuthatch