Strigidae

Eurasian Pygmy Owl

Glaucidium passerinum

Eurasian Pygmy Owl (Glaucidium passerinum)
Pl. 1, Eurasian Pygmy OwlPhoto: Frank Vassen
Scientific name
Glaucidium passerinum
Family
Strigidae
Size
15 to 19 cm
Swedish Red List 2025
Near threatened (NT)
Global Red List (IUCN)
Least concern (LC)

The Eurasian Pygmy Owl is an owl about the size of a Starling that breeds in coniferous and mixed forest from northern Skåne and northern Blekinge to Norrbotten. Together with Tawny Owl and Tengmalm's Owl it is one of the commonest owls in Sweden.

How to recognise it

  • About the size of a Starling, female larger than male, with no ear tufts
  • Grey-brown upperparts with whitish spots, white underparts with brown lengthwise streaks
  • Small head with yellow eyes, white to grey eyebrows and a white half-collar
  • White bars across the tail, which is often flicked sideways or cocked steeply

Call and song

The song is a steady series of soft, monotone whistles about one second apart. It carries 500 metres to a kilometre. The female sounds like the male but higher. Before and after the mating season both sexes give a rising series of five to seven notes. In February to April it holds territory, often singing from a spruce top.

Recording: Rabe19, public domain, via Wikimedia Commons, trimmed and edited

Where and when

It lives mainly in larger, older mixed conifer forests with many deciduous trees such as aspen and birch. It is absent from small, isolated woods, Öland, Gotland, the mountains and forests near them. It is reported most in February and rarely in May to August. Its share of all bird reports is highest in Västmanland, Västernorrland and Jämtland. It is Near Threatened on the Swedish Red List 2025.

When is it seen in Sweden?

When is it seen in Sweden? Eurasian Pygmy Owl, January J Eurasian Pygmy Owl, February F Eurasian Pygmy Owl, March M Eurasian Pygmy Owl, April A Eurasian Pygmy Owl, May M Eurasian Pygmy Owl, June J Eurasian Pygmy Owl, July J Eurasian Pygmy Owl, August A Eurasian Pygmy Owl, September S Eurasian Pygmy Owl, October O Eurasian Pygmy Owl, November N Eurasian Pygmy Owl, December D
Share of all bird reports per month in Artportalen, 2016 to 2025.

Where is it reported?

Where is it reported? Värmland: large share Västmanland: large share Dalarna: large share Västernorrland: large share Jämtland: large share Västerbotten: medium share Norrbotten: medium share Uppsala: medium share Jönköping: medium share Kronoberg: medium share Örebro: medium share Gävleborg: medium share Stockholm: small share Södermanland: small share Östergötland: small share Kalmar: small share Gotland: small share Blekinge: small share Skåne: small share Halland: small share Västra Götaland: small share
  • No reports
  • Small share
  • Medium share
  • Large share
Share of all bird reports per county in Artportalen, 2016 to 2025.

Reported most in February. Rarely reported in May to August. Its share of all bird reports is highest in Västmanland, Västernorrland and Jämtland.

Food and behaviour

It feeds mainly on voles and shrews, but while the young are growing, small birds up to thrush size make up a large part. It often stores food in holes in trees. It is fairly tame and most active at dawn and dusk, but is also seen by day. It flies in soft undulations like a woodpecker. Small birds, especially Coal Tits, react to its call with loud alarm.

Eurasian Pygmy Owl, another photo
Pl. 2Photo: Frank Vassen

Easily confused with

  • Boreal Owl

    Tengmalm's Owl is the species the Eurasian Pygmy Owl is most easily confused with.

  • Athene noctua

    In flight the Eurasian Pygmy Owl can be mistaken for a dark Little Owl.

More in the Strigidae family

Photo: Frank Vassen, CC BY 2.0, via Wikimedia Commons, resized

Photo: Frank Vassen, CC BY 2.0, via Wikimedia Commons, resized

The text was written with AI from facts in Wikipedia and may be shared under CC BY-SA 4.0. Sources: Swedish article, English article, German article

Report data: Artportalen (SLU Swedish Species Information Centre) via GBIF.org, 2016 to 2025. Red list: The Swedish Red List 2025, SLU Swedish Species Information Centre via GBIF.org.

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