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Question: Typically, I do not remove the nests after they’ve gone and they just do “repairs” when they return in the spring. Though I did about 8 years ago and they just started over (I have a pond they use to get their mud so they can build really fast).
But with the reference to “nest mites” in a previous post, I’m thinking maybe to take them down this year.
Swallow gurus, what do you think?[/QUOTE]
You do not have to take the nests down because of mites.
We had mites in two nests, which killed the second batch of the offspring.
I contacted our wildlife animal rehabilitator. She advised to use diatomaceous earth powder. You should be able to find it at TSC, Coop, and other places or online.
It is safe to use in nests, even when swallows are between babies and you want to make sure, there will not be mites in the second batch.
Otherwise, clean the nests and sprinkle it over and around them, when they leave.
One of the products is sold in a yellow bag.
I would not use Sevin. It can be rather toxic to birds.