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McGILL BIRD OBSERVATORY |
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October 2004. Volunteers install a new layer of aspenite, covering over the weathered and in places weakened old roof panels.
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McGILL BIRD OBSERVATORY |
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October 2004. Volunteers install a new layer of aspenite, covering over the weathered and in places weakened old roof panels.
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© 2002-2008 The Migration Research Foundation Inc. |
