Hair-like ?fungus

Hair-like ?fungus

Observation - Hair-like ?fungus. Description: This hair-like ?fungus was growing under our shelled sunflower seed bird feeder. It was very thick, resistant to being brished away with a stiff broom, and spread quickly. What is it please and is it dangerous to garden wildlife or plants (ie like honey

This hair-like ?fungus was growing under our shelled sunflower seed bird feeder. It was very thick, resistant to being brished away with a stiff broom, and spread quickly. What is it please and is it dangerous to garden wildlife or plants (ie like honey fungus?) - should I be worried that I have it and will it come back next year?