greenhead

(redirected from greenhead flies)
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green·head

 (grēn′hĕd′)
n.
1. A male mallard duck.
2. Any of several horseflies having green eyes, found especially in coastal regions.

greenhead

(ˈɡriːnˌhɛd)
n
(Animals) a male mallard
References in periodicals archive ?
It's a much better time for birding and walking the beach at Plum Island than the middle of the summer when the greenhead flies are out and the piping plovers are nesting," she says.
Bites from greenhead flies and the tiny flying pinheads that locals call "noseeums" are fees, like beach parking, paid only from Memorial Day through Labor Day.