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    Eine aktualisierte Schätzung der Anzahl der von Freigängerkatzen getöteten Vögel in Kanada – Avian Conservation and Ecology

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    1. Plant__Eater on

      **Abstract:**

      >Domestic cats, *Felis catus*, can be found almost everywhere in the world and estimating their impact on wildlife, including birds, requires the most up-to-date information. There are an estimated 9.3 million pet cats in Canada, 30–60% of which are given unrestricted access to the outdoors. With the best available data in 2013, cats were estimated to kill between 105–348 million birds per year in Canada, making them the leading measurable cause of bird mortality in the country. However, a decade later, research on outdoor cats and their predation of birds has increased considerably, providing an opportunity to revisit this mortality estimate. Using recent data on predation rates and cat abundance, we estimated that cats kill between 19 and 197 million birds per year in Canada, 71% lower than the earlier estimate. This does not mean that cat populations or predation rates on birds have declined since the previous estimate. Rather, we suggest that the difference can be primarily attributed to lower outdoor cat abundance estimated from field surveys compared to previously used cat ownership surveys and media reports of shelter intake data. Although the estimated number of birds killed annually by cats is considerably lower than the previous estimate, outdoor cats remain a serious concern for native bird populations.[[1]](https://doi.org/10.5751/ACE-02926-200212)

    2. AllanfromWales1 on

      Is there evidence on whether the number of birds raised of relevant species is influenced by the rate of cat predation? In other words is this an absolute loss, or is much of it covered by additional breeding?

    3. GrunkTheOrc on

      Cat haters playing god with evolution. No continental extinctions. artical states just on islands where cats never existed. cat haters.

    4. Shayden-Froida on

      Any studies of increased population of Canis latrans in urban settings and the related impact on Felis catus being given unfettered access to outdoors by Homo nervioso?

      I’ll admit to mocking a bit here, but „105 to 348 million“ and „19 to 197 million“ as a possible ranges reads, to me, as „We really have no idea“. To cite that in the same breath as „measurable cause“ is pure comedy.

      I like cats, (but I own dogs), and I’ve grown tired of this „blame the cats“ thing on birds. My window panes have probably killed more birds than my cats (when I had them) ever did.

    5. BevansDesign on

      Is there actually any reason to be concerned about this though? Animals kill other animals, and it’s only a problem if it negatively affects the sustainability of the prey populations.

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