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Rock Wren on a Tree
In fairness to scientists, this Rock Wren is on a dead tree. If it were a live tree, I think they’d have quite a a lot of explaining to do!
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Nuthatch Building a Nest
A Red-Breasted Nuthatch hollows out a nest in a tree. It would tap at the wood from inside the cavity and then carry it out of the hole one beakful at a time. This cavity was deep enough to completely hide the nuthatch when it dropped down to excavate. Mated pairs build the nest together,…