Blackcap

Species Profile

Blackcap

Sylvia atricapilla

Quick Facts

Conservation

LCLeast Concern

Lifespan

5 years[4]

Length

13–15 cm

Weight

14–20 g

Wingspan

20–23 cm

Migration

Partial migrant

This petite warbler, with its distinctive black or brown cap, fills British gardens and woodlands with its rich, flute-like song.

Also known as: Eurasian Blackcap, Northern Nightingale

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Gallery

Eurasian Blackcap with berries in its mouth
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Eurasian Blackcap with berries in its mouth

Appearance

The Blackcap is a small, sleek warbler with a distinctive appearance. Males have a neat black cap on top of their grey head and neck, contrasting with olive-brown upperparts and pale grey underparts. Their wings are darker grey-brown.

Females are different to males, with a rusty-brown cap, while juveniles lack the cap entirely, showing an overall greyish-brown plumage. Both sexes have a slender black bill and grey legs.

Identification & Characteristics

Male Colors

Primary
Grey
Secondary
Black
Beak
Black
Legs
Grey

Female Colors

Primary
Grey
Secondary
Buff
Beak
Black
Legs
Grey

Female Markings

Rusty-brown cap


Attributes

Agility85/100
Strength30/100
Adaptability90/100
Aggression60/100
Endurance75/100

Habitat & Distribution

Blackcaps thrive in various wooded habitats, from deciduous and mixed forests to parks and gardens with dense undergrowth. They are widespread across Europe and extend into western Asia and northern Africa.

While traditionally migratory, with most birds wintering in southern Europe and Africa, an increasing number now overwinter in the UK and other parts of northern Europe, especially in urban areas with reliable food sources.

Distribution

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Where to See This Bird

Explore regional guides for locations where this bird has been recorded.

Wales

ResidentYear-round

United Kingdom

ResidentYear-round

England

ResidentYear-round

Northern Ireland

ResidentYear-round

Scotland

ResidentJan, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov

Cambridgeshire

ResidentYear-round

Rutland

ResidentYear-round

Bedfordshire

ResidentYear-round

Buckinghamshire

ResidentJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Dec

Berkshire

ResidentYear-round

Bristol

ResidentYear-round

Cheshire

ResidentYear-round

Cornwall

ResidentYear-round

Cumbria

ResidentJan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov

Derbyshire

ResidentJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov

Devon

ResidentYear-round

Dorset

ResidentYear-round

Durham

BreedingMar, Apr, May, Jun, Jul, Aug, Sep, Oct

Gloucestershire

ResidentYear-round

East Riding of Yorkshire

ResidentYear-round

Essex

ResidentYear-round

East Sussex

ResidentYear-round

Hampshire

ResidentYear-round

Herefordshire

ResidentYear-round

Hertfordshire

ResidentYear-round

Isle of Wight

ResidentYear-round

Kent

ResidentYear-round

Merseyside

ResidentYear-round

Lancashire

ResidentYear-round

Leicestershire

ResidentYear-round

Lincolnshire

ResidentYear-round

London

ResidentYear-round

Manchester

ResidentYear-round

Northumberland

BreedingApr, May, Jun, Jul, Aug, Sep, Oct, Nov

Norfolk

ResidentYear-round

Northamptonshire

ResidentYear-round

Nottinghamshire

ResidentYear-round

North Yorkshire

ResidentFeb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov

Oxfordshire

ResidentYear-round

South Yorkshire

ResidentYear-round

Tyne and Wear

ResidentJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov

West Midlands

ResidentYear-round

Suffolk

ResidentYear-round

Shropshire

ResidentYear-round

Somerset

ResidentYear-round

Surrey

ResidentYear-round

Staffordshire

ResidentJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Dec

Stockton-on-Tees

ResidentJan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Nov

Warwickshire

ResidentYear-round

Wiltshire

ResidentYear-round

West Yorkshire

ResidentYear-round

Worcestershire

ResidentYear-round

West Sussex

ResidentYear-round
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Diet

Blackcaps are primarily insectivorous during the breeding season, feasting on caterpillars, flies, and spiders. In autumn and winter, they switch to a more frugivorous diet, relishing berries and fruits. This dietary flexibility has contributed to their success in adapting to various habitats.

Behaviour

Blackcaps are known for their agile movements, often seen flitting through foliage in search of insects. They exhibit a unique 'hovering' behaviour while foraging, momentarily suspending themselves to pluck berries or insects from leaves.

During the breeding season, males become fiercely territorial, engaging in vocal battles to defend their nesting areas.

Calls & Sounds

The Blackcap's song is a rich, flute-like warble, often described as one of the most beautiful of any European bird. It typically begins with a series of soft, warbling notes before building to a loud, clear crescendo. Their call is a sharp, repetitive 'tack' or 'chack' sound.

Nesting & Breeding

Blackcap breeding season typically begins in late April or early May. Males establish territories and attract females with melodious songs, often engaging in elaborate courtship displays.

Nests are built low in shrubs or small trees, usually by the female. The nest is a neat cup made of grass, roots, and hair. Females lay 4-6 eggs, pale in colour with brown speckles.

Both parents share incubation duties for about 11-12 days. Nestlings fledge after another 11-12 days, but parents feed them for several weeks after leaving the nest.

Conservation

While currently listed as Least Concern, Blackcaps face challenges from habitat loss and climate change. Their adaptability to urban gardens has helped maintain populations, but conservation efforts focus on preserving diverse woodland habitats and monitoring migratory patterns affected by changing temperatures.
LCLeast Concern
[1]

Population

Estimated: 101,000,000 - 161,000,000 mature individuals[3]

Trend: Increasing[2]

Elevation

Up to 2,200 meters

Additional Details

Predators:
Main predators include sparrowhawks, domestic cats, and corvids such as jays and magpies, which often target eggs and nestlings.

Birdwatching Tips

  • Listen for their rich, flute-like song, especially in spring and early summer
  • Look for movement in the middle and upper layers of woodland or garden trees
  • Observe bird tables in UK gardens during winter, where some Blackcaps now overwinter
  • Pay attention to the distinctive cap colour to differentiate males from females

Did You Know?

  1. Blackcaps can remember the locations of feeders for years, returning to the same gardens each winter.
  2. They are among the few birds that have changed their migratory patterns due to human activities and climate change.
  3. Male Blackcaps can learn to mimic the songs of other bird species, incorporating them into their repertoire.

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