Yellow spots on wood in coop

[aart]

Before I even started using the sprayers this these yellow spots were popping up and this is an all open coop is not closed at all all wires chicken wire

Looks like some kind of lichen.
I'd not worry about it.

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Climate, and time of year, is almost always a factor.
Please add your general geographical location to your profile.
It's easy to do, and then it's always there!

 

[lilofthestars]

I guess I forgot this picture

 

[lilofthestars]

Looks like some kind of lichen.
I'd not worry about it.

Where in this world are you located?
Climate, and time of year, is almost always a factor.
Please add your general geographical location to your profile.
It's easy to do, and then it's always there!
View attachment 3158446

Northern Florida Thank you again