HULPPRE Solar Outdoor Motion Sensor Alarm-13 Sounds Including Dog Barking&Gunshot,2 * 130db Loud Noise Maker,4 Modes,Red&Blue Motion Activated Strobe Light,Say Goodbye to The Intruders

you could try something like this https://www.amazon.com/HULPPRE-Alarm-13-Including-Activated-Intruders/dp/B0D535C1F3/ref=sr_1_9?crid=P22N85TTI9G3&dib=eyJ2IjoiMSJ9.mps84awHSrhlkSnhmt5__o3BUDH-T6tceVlhsHk_t3J0TK0v7UwYFERjZKqVe6LMY25iWkH2uXVY0aKrMwJWIhR-ygoL1DUbK6q66gwcmEPkuZaaqhI0oS2nVxEiVVXHzl_bVZPV52oEGqHIdClaLE3fVCaP973FOCY9lYYJw87OqyDafKrq2r46VJwBhizUekp84fm-PunDtlvcz0h_S3Nm3kyaCL8QaUZRawBsIHl871n8cG5dBVEBsSyV6muWH7Z_Xs6_OjUsNpMSaGkilu6EIBesQY2XB_N12HQEMRo.z_IrstSzPp2G0I9AcNB16ejpnRppqx92G4uZ1N9JBw4&dib_tag=se&keywords=motion%2Bactivated%2Banimal%2Bdeterrent&qid=1781165264&sprefix=motion%2Bactivated%2Caps%2C214&sr=8-9&th=1 you can buy them locally. It will take hair out of the drain and oif something else is in there too. good luck

motion activated animal deterant like this: https://www.amazon.com/HULPPRE-Alarm-13-Including-Activated-Intruders/dp/B0D535C1F3/ref=sr_1_9?crid=P22N85TTI9G3&dib=eyJ2IjoiMSJ9.mps84awHSrhlkSnhmt5__o3BUDH-T6tceVlhsHk_t3J0TK0v7UwYFERjZKqVe6LMY25iWkH2uXVY0aKrMwJWIhR-ygoL1DUbK6q66gwcmEPkuZaaqhI0oS2nVxEiVVXHzl_bVZPV52oEGqHIdClaLE3fVCaP973FOCY9lYYJw87OqyDafKrq2r46VJwBhizUekp84fm-PunDtlvcz0h_S3Nm3kyaCL8QaUZRawBsIHl871n8cG5dBVEBsSyV6muWH7Z_Xs6_OjUsNpMSaGkilu6EIBesQY2XB_N12HQEMRo.z_IrstSzPp2G0I9AcNB16ejpnRppqx92G4uZ1N9JBw4&dib_tag=se&keywords=motion%2Bactivated%2Banimal%2Bdeterrent&qid=1781165264&sprefix=motion%2Bactivated%2Caps%2C214&sr=8-9&th=1 I chose this one because you can put it up by your window so he cant pull it out and toss it away