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Old Wednesday 30th October 2019, 06:19   #2
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Location: Portland, Oregon
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No, they in no way impede migration. And in the temperate parts of North America, at least, where most of the local cavity roosters are resident year round, I doubt if nest boxes see any significant use by migrants.
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". . .Let them be left, O let them be left, wildness and wet;
Long live the weeds and the wilderness yet."

--Gerard Manley Hopkins

Last edited by fugl : Wednesday 30th October 2019 at 06:24.
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