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El Rosario Sanctuary, Monarch Biosphere Reserve
Migration Milestones
Karen Oberhauser discusses the new data on monarch winter population numbers. Along the East Coast, monarchs are making northern progress and entering new states and provinces. And Western monarchs are venturing beyond California to Nevada, Utah, and Oregon.
Karen Oberhauser discusses the new data on monarch winter population numbers. Along the East Coast, monarchs are making northern progress and entering new states and provinces. And Western monarchs are venturing beyond California to Nevada, Utah, and Oregon.
Featured Image Caption
Graph #1 (Click to enlarge)
