Low counts of overwintering monarchs trouble experts who see a potential species collapse. #westernmonarchs #butterflycount #speciescollapse #xercessociety #overwinteringhabitat
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#overwinteringhabitat
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Low counts of overwintering monarchs trouble experts who see a potential species collapse. #westernmonarchs #butterflycount #speciescollapse #xercessociety #overwinteringhabitat
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