Local Birds Prefer Foliage To Concrete 20 To 1, City of Portland Study Finds

violet green swallow

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Results are in from the city of Portland's spring 2012 Ecoroof Bird Monitoring assessment report (pdf).That's right. You can breathe now.Two Bureau of Environmental Services workers, along with an Audobon Society employee and 10 volunteers, kept tabs on nine locations around the city this spring. Three were buildings with ecoroofs—roofs with plants on them, basically—three were buildings with ...   More
 
Tuesday, July 31, 2012 COREY PEIN

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