ttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8640698/
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We didn't know or study the effects of pesticides in various wild birds. And it varies wildly between species, with chickens not being a good general case. Also that birds are considerably more affected by pesticides than mammals.
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Simple logic. Housecats do not have access to deep woods or exist in large populations outside of cities and suburbs in North America, yet the populations are declining there. This implies that they are not the cause of the decline.
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This logic is backed up by https://www.birds.cornell.edu/home/bring-birds-back#:~:text=All%20told%2C%20the%20North%20American%20bird%20population%20is,declined%20by%2053%25%2C%20or%20another%20720%20million%20birds.
LWhich points out that it is a multitude of factors and that grassland species(i.e. farmland) are the most affected, with wetland and forest species being less affected.
- Further logic is that the decline is a relatively new phenomenon. But housecats killing birds is not new. Therefore something else is behind the decline, and simply keeping cats inside will not fix the issue.
Aurenkin@sh.itjust.works 5 months ago
Before pesticides cats used to just starve. Everyone knows this.
/s
kbin_space_program@kbin.run 5 months ago
Equally, before the post-DDT pesticides(when the decline started), housecats didn't exist, never went outside and never killed anything.
/s
Go look at the other reply where I sourced my opinion.
KairuByte@lemmy.dbzer0.com 5 months ago
You don’t think house cats existed before DDT pesticides?
You don’t think house cats, which have existed for 3600 years, existed before 1874?…
Do I need to math that math for you?
kbin_space_program@kbin.run 5 months ago
thats my point
If house cats were actually some kind of living natural disaster, birds would have driven extinct millenia ago. To solely blame housecats for the mass extinction of songbirds that have existed beside them for hundreds to thousands of years without any appreciable population effect is insane.
Also while DDT has its own host of issues regarding it building up in the food chain, my concern here is the post-DDT ones.