Black-throated Thrush

About

The Black-throated Thrush is a medium-sized migratory thrush known for the distinctive dark throat and upper breast of the male. It is a Palearctic species, breeding in the taiga and mixed forests of Siberia and migrating south to winter in parts of central and south Asia. Its presence in Europe is typically as a vagrant. This species is often seen foraging on the ground for invertebrates and fruits.

Size & lifespan

Length

23-27 cm

Wingspan

37-43 cm

Weight

63-105 g

Lifespan

Up to 5-8 years in the wild

Diet

Primarily invertebrates (insects, earthworms, snails) during the breeding season; supplemented with berries and fruits, especially during migration and in winter.

Physical characteristics

Plumage

Adult male: Head, throat, and upper breast are solid black, sharply demarcated from the white belly. Upperparts are dark grey-brown. Undertail coverts are white. Adult female: Has a much paler, streaked grey-brown throat and breast, often with a hint of dark mottling or streaking, but never solid black. Upperparts are similar to the male but often slightly paler. Immature/Juvenile: Resembles the female, but with buff streaking on the upperparts and more pronounced dark spots or streaks on the throat and breast, often with rufous tones on the flanks.

Beak shape

Medium-length, slender, straight bill; dark horn-colored, often with a paler base to the lower mandible.

Eye color

Dark brown.

Leg color

Dark brown to blackish.

Distinguishing features

The male's striking black throat and breast contrasting with white belly. The female's streaky grey-brown throat, distinct from other thrushes.

Juvenile appearance

Juveniles are paler and browner overall than adults, with buff-white streaking on the back and head. The throat and breast are buffish with heavy dark brown spotting and streaking, often with rufous wash on flanks. This streaking gradually fades as they mature into first-winter plumage, which resembles a duller female.

Seasonal changes

Plumage does not change significantly between breeding and non-breeding seasons for adults, apart from wear and tear. First-winter males begin to show more black on the throat in their first autumn/winter but typically do not achieve the full black throat of an adult male until their second year.

Sexual dimorphism

Strong sexual dimorphism in plumage, particularly in the throat and breast coloration. Males possess a solid black throat, while females have a streaked grey-brown throat.

How to identify

1. 1

   Throat and Breast Color

   Male: Solid, velvety black throat extending to the upper breast, sharply contrasting with a clean white belly. Female: Paler, streaky grey-brown throat and upper breast, lighter than the male, but still distinct from other thrushes.

2. 2

   Upperparts

   Uniform dark grey-brown back, wings, and tail in both sexes, without strong markings or patterns.

3. 3

   Undertail Coverts

   Always white in both sexes, which is a useful field mark.

4. 4

   Behavior

   Often seen foraging on the ground, sometimes in open areas. Can be quite skittish in breeding areas but more approachable in winter. Often in flocks during migration and winter.

5. 5

   Song/Calls

   Listen for the distinctive clear, fluty, melancholy song (breeding) or the soft 'churr' and high 'tseep' calls.

Habitat & range

Biomes

Taiga, boreal forests, mixed woodlands, steppe-forests, subalpine zones.

Geographic range

Breeds from western Siberia across to central Asia (e.g., Altai Mountains, Tien Shan). Winters in parts of Central Asia, the Indian subcontinent, and the Middle East, with vagrants reaching Europe and North Africa.

Elevation range

Breeds at elevations from sea level up to 2500m in mountainous regions. Winters at lower elevations, often in foothills and plains.

Preferred environments

Breeding: Coniferous and mixed forests, particularly those with a dense undergrowth. Often near clearings or forest edges. Wintering: Open woodlands, orchards, gardens, cultivation, and semi-arid scrub with scattered trees.

Behavior

Activity time

Primarily diurnal, most active during the early morning and late afternoon.

Feeding habits

Forages mainly on the ground, often in open areas or under trees, searching for invertebrates by flicking leaf litter and probing the soil with its bill. Also climbs into trees and bushes to feed on berries and fruits. Can be quite tame in wintering areas when undisturbed.

Social behavior

Territorial during the breeding season, though sometimes nests in loose colonies. Outside the breeding season, especially during migration and winter, they can form large flocks, sometimes mixing with other thrush species.

Flight pattern

Strong, direct, and slightly undulating flight typical of thrushes. Often flies low between cover.

Migration pattern

Long-distance migratory. Breeds in northern latitudes and moves south to warmer climates for the winter. Migrates primarily at night. European records are predominantly of vagrants during autumn migration.

Territoriality

Males establish and defend breeding territories through song and displays. In winter, feeding territories are less defined, and they are more sociable.

Breeding & reproduction

Breeding season

Typically May to July.

Nesting habits

Monogamous. The nest is a bulky, cup-shaped structure made of grass, moss, twigs, and leaves, lined with mud and fine grass. It is usually placed in a bush or tree, often close to the trunk or on a sturdy branch, typically 1-5 meters above the ground.

Clutch size

Usually 3-6 eggs.

Egg description

3-6 eggs, usually 4-5. Pale blue or greenish-blue, often sparsely speckled with reddish-brown spots, particularly at the broader end.

Incubation period

11-13 days, primarily by the female.

Fledging period

12-16 days after hatching. Young are fed by both parents.

Parental care

Both parents participate in feeding the young. After fledging, the young are still dependent on parents for several days to weeks before becoming fully independent. Usually one brood per year, sometimes two.

Where to find

Field tips

1. Scan Open Ground and Shrubs. They frequently forage on the ground, often venturing out from cover. In winter, check berry-laden shrubs and trees.
2. Listen for Vocalizations. Their song is distinctive, and their calls can help pinpoint their presence, particularly the 'churr' contact call.
3. Observe Flocks. During migration and winter, they often form mixed flocks with other thrushes. Carefully examine each individual in a flock for the diagnostic throat pattern.
4. Check for Vagrants. In regions outside its normal range (e.g., Europe), birdwatchers should be vigilant during autumn migration for unusual thrush sightings, especially after easterly winds.

Similar species

Quick facts

Status:

Least Concern

Diet Type:

Omnivorous (Insects, Worms, Fruits)

Nesting Type:

Cup-shaped nest in trees/bushes

Migration Type:

Long-distance migrant

Habitat Preference:

Forests, Woodlands, Gardens, Scrubland

Fun facts

• The Black-throated Thrush is one of the more commonly recorded Asiatic thrush vagrants in Europe, making it a highly anticipated find for many European birdwatchers.
• Its specific scientific name 'atrogularis' comes from Latin 'ater' meaning black and 'gula' meaning throat, directly describing its most prominent feature.
• This species can be quite confiding in certain wintering areas, allowing for close observation, especially when food is readily available.

Scientific classification

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Passeriformes

Family

Turdidae

Genus

Turdus

Species

Turdus atrogularis

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