Ask Umbra: Are GMO sugar beets bad for the birds?: A reader wonders if she’s harming hummingbirds. Umbra busts… http://t.co/ZWCkNx1psy

by Freeman Lowell

Ask Umbra: Are GMO sugar beets bad for the birds?: A reader wonders if she’s harming hummingbirds. Umbra busts… http://t.co/ZWCkNx1psy:

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