Comment on The overengineered solution to my pigeon problemparentComments−MontyCarloHall4yYou are correct; birds are not sensitive to capsaicin [0]. Seems this is specifically confirmed for pigeons [1].Perhaps the cinnamon or vinegar are the true repellents?[0] https://pubmed.ncbi.nlm.nih.gov/11853675/[1] https://pubmed.ncbi.nlm.nih.gov/3797018/
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You are correct; birds are not sensitive to capsaicin [0]. Seems this is specifically confirmed for pigeons [1].
Perhaps the cinnamon or vinegar are the true repellents?
[0] https://pubmed.ncbi.nlm.nih.gov/11853675/
[1] https://pubmed.ncbi.nlm.nih.gov/3797018/