I know that when CDs were popular, people would hang them at eye level for a guinea to deter them from going places they didn't want them to go. Whether or not it continued to work once they got used to them is something I do not know.There are the shiny cds people hang… I could try that though I’ve always been a little skeptical. The guineas are using the coop roofs as lookout stations and I’m not sure whether the CDs would disrupt them too…
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