Location: Port Wing bogs
Bibon Lake Bog and the bog inside Port Wing Boreal Forest (PWBF) west unit. These are Bog Fritillary long-term monitoring sites. Bibon Lake is the phenologically slowest bog we survey in Wisconsin, and PWBF is the 2nd slowest. Their Bog Fritillaries might have been early in their flight periods today.
These sightings are submitted by butterfly enthusiasts across Wisconsin.
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