In this climate, you have to be diligent to keep mold from growing in your bird feeders.
There has been a lot going on around here lately, so I had neglected this task.
Several varieties of mold had taken hold. Even our resident family botanist could not identify this hairy variety:
Ick!!
A little bleach and a good scrubbing with some steel wool and we were soon back in business.
This is really disgusting. I have never seen anything like this.