>A general predilection of Apis for large bunches of male flowers, including 
>wind-pollinated Fagaceae, Euphorbiaceae (Macaranga), and many grasses, for 
>example wind-pollinated Zea mays, generally signifies that pollen is being 
>removed but often little or no pollination service is provided.

Are they not assisting the pollination by dislodging pollen from the male 
flowers, some of which will then drift onto the female flowers?

Best wishes

Peter
52.194546, -1.673618 

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