We have a nest box for our girls and I have a hunch that it is pine. Hasnt been a problem for us but I am not sure it is technically the best material
. Hubby just passed by and said it is pine for sure. It was a planter box that I bought and then we fitted an oak door on top that opens. Also drilled a hole in the side of course so they can get in and out
. It has a sealer on the wood so it helps to keep pee from penetrating but some still does. It did not have the thickest sealer though. Need to make them another box to replace it. They have slept in the nest box ever since we got them. It is maybe 6"x6"x6". They never poop or pee in the nest box which is great
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