Dusky Thrush

Turdus naumanni

Order

PASSERIFORMES

Family

Thrushes (Turdidae)

Code 4

DUTH

Code 6

TURNAU

ITIS

Egg Color:

Light blue green with brown blotches



Number of Eggs:

4 - 6



Incubation Days:

13 - 15



Egg Incubator:

Female



Nest Location:

On tree branch., In stump or on ground or cliff ledge.



Nest Material:

Grass, rootlets, twigs., Lined with clay.



Migration:

Migratory



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General

Dusky Thrush: Large thrush with brown back and rufous wings. Underparts are white with black scaling. Head is dark, eyebrow is white, and bill is black with yellow base on lower mandible. Throat is white with black streaks and partial collar is white. Female and juvenile are duller. Rare visitor to Alaska.

Range and Habitat

Dusky Thrush: This species is common in Siberia and occurs casually in Alaska during spring migration. It is rare to accidental in coastal Alaska, along the Aleutian archipelago, and coastal British Columbia during the winter. Its preferred habitats include lawns and ornamental fruit-bearing shrubs and trees.

Breeding and Nesting

Dusky Thrush: Four to six light blue green eggs with brown blotches are laid in a nest made of grass, rootlets, and twigs, lined with clay, and built on a tree branch, stump, ground, or cliff ledge. Incubation ranges from 13 to 15 days and is carried out by the female.

Foraging and Feeding

Dusky Thrush: Eats insects, earthworms, berries, and fruits; forages while hopping on the ground, pausing frequently to scan for food.

Vocalization

Dusky Thrush: Song is a series of melodious whistles. Call is a harsh "shack-shack-shack" or piecing "shreee."

Similar Species

Dusky Thrush: Eyebrowed Thrush has brown upperwings, rufous wash on belly, gray upper breast, white spot from eye to chin, and lacks black scaling on underparts.

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

CollarX
Similar to the upper part of the human neck, located at the back of the crown.
EyebrowX
Also called the supercilicum or superciliary it is the arch of feathers over each eye.
Lower mandibleX
The lower part of the bill.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X