Wren House Cleaning
Name: Norman S.
Once our wrens have raised a brood, do we need to clean
out the next box to get them to raise another brood?
Wrens will build nests on top of nests until the house is cluttered and no useable nest can be built. These birds work on fix action patterns to build a nest and do not generally accept what may already be there. It would serve the propose of helping to assure a return from year to year if you do clean out the nesting box.
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Update: June 2012