I have had coon footprints on my TH but never an issue. I used to get ants in my hanging feeders but haven't had that issue with the TH either. Had it for over 6 months now and never clogged or had any interruption is service. I'm very happy with it because I don't have to think about it except to fill periodically.

1 ac pond LMB, BG, RES, CC