The article from NRC Wetenschap concerns research into the influence of free-roaming cats on meadow birds in the Netherlands, particularly in Friesland and Groningen. Ecologists including Esther Swankhuisen are investigating the extent of the effect of cats on species such as the black-tailed godwit, an important meadow bird that breeds in large numbers in the Netherlands.
The research shows that cats move through nature reserves further and more frequently than many owners think. Using GPS transmitters and wildlife cameras, it was established that cats are present almost everywhere in meadow bird areas, both during the day and at night. DNA analysis of cat feces also revealed that they primarily eat small mammals, but also regularly birds, including protected species.
In addition, researchers tracked meadow bird chicks fitted with transmitters. Only a small proportion survived, and a number were killed by cats. In addition to direct predation, cats also cause disturbance: birds abandon their nests when in danger, allowing eggs to cool down and reducing the chicks' chances of survival. The conclusion of the study is that cats have a clear negative impact on meadow bird populations, not only through predation but primarily through constant disturbance. At the same time, it is emphasized that other factors also play a role, such as agriculture and other predators. The researchers do not advocate for a single simple solution, but for a combination of measures: better cat management such as microchipping, neutering, and keeping cats indoors more often, especially since house cats and farm cats contribute to stray cats. The article concludes with a call to change one's thinking about cat ownership in order to better protect meadow bird populations. Would you like to read the full article? Then click on the button below
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