Site maintenance

Submitted by admin on 2 November 2025.

We are currently working on the site kvismaren.org. Things might look a bit messy from time to time.

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The summer 2020 at the Observatory

Submitted by admin on 15 April 2025.

In June... månad avslutades en intensiv vårsäsong med ett stort antal projekt. Trots en kall vår och första del av sommaren så fångar vi mycket ungfåglar. Studierna av jordbruksarter har utökats med intensiva studier av bl.a. sånglärkor. Den utsatta populationen av ortolansparv fortsätter att följas. I år var det också dags för kråkinventeringen som genomförs vart femte år.

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Ortolan bunting

This species have been surveyed at irregular intervals since 1968. Nowadays, they’re almost extinct in southern Sweden as a breeder and there are only 10 or so singing males in Kvismaren. In the beginning of 2010 we started a project to determine how they are to be preserved as a breeding species. In Kvismaren work is ongoing to verifying the nesting outcome when active measures are taken by land owners and land left fallow by the edges of fields. In the spring these areas are not planted and therefore presumably protecting the breeding habitat of the Ortolan’s.

Wetland surveys

Over time, restored areas around the lake have been surveyed to decipher breeding wetland species. In 1981, Lake Rysjön was restored. From 1982, all breeding wetland birds have been monitored and production of young calculated. In recent years, the Bird Observatory has had closer co-operation with the provincial government. From 2009, we have done censuses on all wetland birds for the provincial government covering all parts of the wetland nature reserve.

Census of Sörön

In 1965 a census began of a deciduous forest, called Sörön, it lasted for 40 years with the same person carrying out the census, until 2004. It has since continued, in a somewhat modified form.