Big fly, big fish. Right?
Well, not always. Sometimes the fish key on the most numerous flies on the water – even if the flies are tiny. And those flies the fish are keying on are likely to be blue-winged olives.
The olives are a group of small mayflies with greenish-hued bodies and smoky-blue wings. The flies run in size anywhere from about a size 14 clear down to almost microscopic. Anglers can see a lot of variation in size even among flies of the same species.
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