Do kingfishers ever come up empty-handed?

Photograph: PM brem /Guardian Witness

Well, they must have the occasional miss, right?   It's just that I don't remember ever seeing an unsuccessful kingfisher fishing.   Wikipedia says that most of the kingfishers species in the world live away from fresh water and eat small invertebrates!   Here in southern Canada, I've only seen Belted Kingfishers and they always seem to fish in ponds or streams and just eat fish.   I've seen Ospreys miss fish, even seagulls dropping catches, but never an unsuccessful kingfisher.   I like to think of them as intrepid.   Yes, that's the word: intrepid.
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BtheB