Eurasian Scops Owl
©
© Ruedi Aeschlimann
Conservation programme for birds in Switzerland - Priority species

Eurasian Scops Owl

The Eurasian Scops Owl is a small owl with cryptic plumage and an unmistakable call. It inhabits structurally diverse and insect-rich extensively managed agricultural areas, such as traditional orchards or extensively managed low-nutrient meadows with hedges and individual trees. As a cavity-nesting bird, it nests in old trees, but will also use nesting aids. Its diet consists mainly of grasshoppers.

In the early 2000s, the species was almost extinct in Switzerland, but it is now slowly returning to areas it inhabited formerly as well as colonising new ones. It is principally found in warmer regions such as Valais and Ticino.

Conservation of the Eurasian Scops Owl can be promoted by preserving extensively managed low-nutrient meadows, leaving strips of grass unmown, preserving hollow trees and installing nesting aids.

Distribution and development

Schematic distribution
Verbreitung - Eurasian Scops Owl
Schematic distribution during the breeding season (ochre), in winter time (dotted in blue) or during migration periods (dotted in vinaceous).
Breeding bird index
The graph shows the relative evolution of the breeding population in Switzerland (100 = mean value). Example: A value of 130 means that the population in the corresponding year was 30% above the mean value of the entire period considered.
Distribution and prevalence in Switzerland
  • In 2024, 106 territories were recorded, of which 73 were in Valais (29 pairs and 44 callers), 8–11 in Ticino and the rest in other regions.
  • Regular callers in Grisons and Geneva. Otherwise, broods are seldom found north of the Alps.
  • Swiss subpopulations at the northern edge of the range.
Development in Switzerland
  • In the 20th century, the population collapsed, leaving just a single pair and a few unpaired callers, since then it has slowly recovered.
  • Numbers are steadily increasing in Valais and seem to be remaining stable in Ticino.
International
  • Breeds in southern Europe and the Mediterranean as well as in western Asia.
  • Wintering grounds are located in sub-Saharan Africa and in southern Europe; parts of the population in southern Europe are non-migratory.
  • European population was declining until the 1990s, now increasing in central and eastern Europe.

Habitat and food

Habitat
Farmland
Fallows, Orchards, Meadows and pastures
Food
Insects and spiders
Insects, Flying insects, Large insects, Grasshoppers, Insect larvae, Moths
Mammals
Small mammals
Reptiles
Lizards
Birds
Young birds, Small birds
Habitat and food requirements

The Eurasian Scops Owl prefers extensively managed, structurally diverse meadows with hedges, individual mature trees or field copses and traditional orchards, which are often located on gently inclined south-facing slopes.

Feeding habitat

  • Extensively managed, structurally diverse meadows with high densities of grasshoppers and moths.
  • The Great Green Bush-cricket is an important component of its food during the breeding season.

Nesting site

  • Mature free-standing trees or groups of trees close to hunting territories.
  • Often uses holes made by the European Green Woodpecker.
  • Will also use nest boxes.

Winter habitat

  • Migratory bird which overwinters in savannahs and wooded areas in sub-Saharan Africa and southern Europe.
Conservation programme for birds in Switzerland - Priority species

Eurasian Scops Owl

The Eurasian Scops Owl is a small owl with cryptic plumage and an unmistakable call. It inhabits structurally diverse and insect-rich extensively managed agricultural areas, such as traditional orchards or extensively managed low-nutrient meadows with hedges and individual trees. As a cavity-nesting bird, it nests in old trees, but will also use nesting aids. Its diet consists mainly of grasshoppers.

In the early 2000s, the species was almost extinct in Switzerland, but it is now slowly returning to areas it inhabited formerly as well as colonising new ones. It is principally found in warmer regions such as Valais and Ticino.

Conservation of the Eurasian Scops Owl can be promoted by preserving extensively managed low-nutrient meadows, leaving strips of grass unmown, preserving hollow trees and installing nesting aids.
Priority species at national level
The ‘responsibility’ factor describes the international significance of the Swiss population of a species. The allocation to responsibility classes was based primarily on geographical distribution (Switzerland, Europe or worldwide) and the genetic and/or ecological significance of Swiss populations.
  • Exclusive responsibility
  • Very high responsibility
  • High responsibility
  • Responsibility
  • Joint responsibility
  • Minimal joint responsibility
Operational level
The level at which measures should be taken for all national priority species is specified within the framework of specific 'species conservation' (SC), 'habitat conservation' (HC), or the biodiversity-friendly use of natural resources on the ""entire territory"" (ET) by all sectoral policies. Each species has been assigned to only one level. If measures at the 'entire territory' (ET) level are insufficient for the conservation and promotion of the species, measures at the second level, 'specific habitat conservation' (HC), are required. If this is also insufficient, specific 'species conservation' (SC) measures must also be applied. Therefore, a species requiring specific species conservation measures must also be given special consideration when implementing measures at the 'specific habitat conservation' and 'entire country area' levels.
  • SC species conservation
  • HC habitat conservation
  • NT national territory
SC
Urgency
An expert assessment was made of the urgency with which measures should be implemented, continued and/or newly planned for all species assigned to the specific 'species conservation' and 'habitat conservation' action levels. The two factors of endangerment and international responsibility were considered, as were the prospects of success.
  • Necessary and important
Circle
Circle
Circle
Population in Switzerland
(2021-2024)
The population estimate indicates how many pairs bred during the specified period. As this number fluctuates from year to year and due to uncertainties in population surveys, a range is given. For some species that are difficult to survey, only displaying males are listed. The population estimates cannot be simply doubled to derive the number of individuals. The number of birds is much higher after the breeding season, some birds take years to reach reproductive maturity, and in some cases the sex ratio is not 1:1.
70-90pairs
Red List
Red lists are based on the scientific criteria of the IUCN and assess the risk of extinction of a species. This helps to identify where there is a particularly urgent need for action in nature conservation.
  • Endangered (EN)

Project managers

Threats, activities and forecasts
Limiting factors and threats

The intensive management of farmland and the associated dearth of structures such as hollow trees and hedges, the use of pesticides and the irrigation of hay meadows are leading to a decrease in the density and diversity of insects and to a shortage of nesting opportunities.

 
Breeding season
  • Lack of nesting sites (shortage of isolated mature trees).
  • Low insect density (mainly grasshoppers).
  • Human disturbance, especially during the mating season.
 
Migration/ Winter
  • The birds pass through areas where they are still actively hunted and caught with nets.
  • Desertification in the Sahel belt due to global warming and overexploitation of soils is likely to be a problem in the wintering grounds.
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Necessary activities
Monitoring
  • Annual monitoring of callers and breeding pairs in Valais and Ticino to record the population.
  • Monitoring of the Eurasian Scops Owl should be carried out between 20 April and 10 May, as calling activity decreases sharply after that.
 
Conservation
  • Promoting the extensive use of agricultural land.
  • Conserving the structural make-up of the landscape by planting hedges, individual trees and standard trees.
  • Promoting insect diversity, e.g. by leaving grass strips unmown.
  • Installing nesting aids.
  • Raising awareness about disturbing nesting avifauna.
 
Research
  • Determination of the density of insects, especially grasshoppers.
  • Assessment of possible differences to explain the different population trends in the distribution areas in Valais and Ticino.
  • Research on the size and use of hunting territories.
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Prospects for success and prognostics
  • The species is benefiting from ongoing climate change.
  • The trend in Valais raises hopes of a further increase in the population, while the future of the population in Ticino is more uncertain, as its small size makes it more susceptible to random fluctuations.
  • The ongoing intensification of agriculture at intermediate elevations, due in part to increased irrigation of hay meadows but also to the expansion of urban areas, presents a risk.
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Conservation measures and stakeholders
Create ecological compensation areas

Wildflower strips, field margins and extensively managed staggered-use or late-use meadows and pastures provide an adequate supply of food.

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Agriculture
Nature conservation
Promote extensive grazing
Extensive grazing promotes species- and structure-rich vegetation.
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Agriculture
Nature conservation
Preserve cavity trees

Hollow trees provide nesting opportunities for a wide variety of bird species in addition to the Eurasian Scops Owl.

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Cantons
Forestry
Municipalities
Nature conservation
Parcs
Preserve/promote traditional orchards
High-stem orchards on extensive meadows, pastures and other types of ground-cover are an important habitat for many bird species.
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Agriculture
Municipalities
Nature conservation
Parcs
Offer and maintain nesting aids

The installation and maintenance of nest boxes compensates for the lack of natural nesting opportunities.

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Agriculture
Nature conservation
Parcs
Conservation projects Swiss Ornithological Institute
Species conservation
Conservation of the Eurasian Scops-owl
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©
© Ruedi Aeschlimann
Birds of Switzerland

Eurasian Scops Owl

In the south, the monotonous, flute-like song of the Scops Owl can be heard in many places, including campsites and city parks. In Switzerland, this heat-loving species is mainly found in the southern parts of the country, where it brings back memories of holidays in the Mediterranean. However, it is rarely seen: thanks to its bark-coloured plumage, it is perfectly camouflaged during...
To the species profile in the bird database

Synergies with other priority species