[Pollinator] A strange phenomenon reported

[Margarita Lopez Uribe]

A strange phenomenon reported - hundreds of bumble bees visiting/alighting on rusted metal on galvanized sheeting.
>They seem to be ingesting something along rusty patches of galvanized sheeting.
>
>Have you any idea why?   Is this likely to poison them?  Can they be discouraged safely for their own good ?
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