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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Black-headed gull

At the beginning of the 1990's attention was drawn to the fact that the Black-headed Gull population declined in all of Sweden, a national project was initiated to investigate the causes and Kvismare Bird Observatory participated in a study in Rysjön’s colony. The production of juveniles was measured, nestling weight at different ages and predation was studied. It was found that too few young birds survived and these results were applied to more places around Sweden.

Penduline tit

In 1989, there was a large establishment of Penduline Tits in Kvismaren when nine individuals were present. The year after there was 14-21 individuals. Penduline Tit have a very exciting breeding biology and from the outset many individuals were colour-ringed. For such a small bird it is very mobile both within a breeding season and between years.

Census of Lapwing and Curlew

Lapwing and curlew have been surveyed since 1967, this now takes place in a field area south of Nyängen. The short version of the results is that the Lapwing held its population number relatively well while the curlew declined and recently been lost as a breeding species in Kvismaren. The lapwings also breed in restored wetlands and have been gradually increasing, while the large-scale agricultural changes have not been accepted by the curlews.