Furthermore, discarded food in proximity to the feeder raises red flags about potential contamination with diseases like trichomoniasis.
Experts at the Royal Society for the Protection of Birds (RSPB) have sounded the alarm over diseases being passed around at bird feeders.
Richard Green, head of production at Kennedy Wild Bird Food and Pet Supplies, shed light on this avian health crisis, reports the Express.
Richard advocates a feeder removal "for at least two weeks" to avoid the contamination spreading further.
Beyond cleanings, certain giveaway signs point towards potential feeder contamination.