Early Arrivals in Mexico

Migratory monarchs were reported in Mexico, and activity remains high along the central flyway and is building along the eastern flyway.

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Fall Migration Season is Here!

Monarch activity is ramping up as preparations for fall migration begin. Get ready and share your observations!

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Gardeners restore pollinator habitat

Monarch butterflies are vital pollinators that have been dying out due to a loss of habitat and harsh weather conditions. But families, clubs, and other volunteers can bring portions of the habitat back to life with nectar-rich plants like milkweed.

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Sightings Flowing in

Fall begins next week and migration is well underway as reports of flying, nectaring, roosting, and late season breeding continue to come in.

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New study indicates a 53% decrease in area occupied by monarch butterflies

In the 2019-2020 wintering season, the area of forest occupied by monarch butterflies was 7 acres, down from 15 acres in the 2018 – 2019 season.

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Monarch butterflies: Signs point to a banner year for 2019

It’s early yet, but initial signs point to a banner year, butterfly-wise. Monarch butterflies overwinter in Mexico, and three groups tracking them report a significant increase.

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Scientists Urge Mexico To Halt Logging In The Monarch Butterfly Biosphere Reserve

Scientists from several countries urged Mexican authorities to immediately halt logging in the Monarch Butterfly Biosphere Reserve and promote the regeneration of the forests that form its habitat, in a published letter in the current edition of the journal Science .

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Riding Ridges, Traveling Coastlines

Peak flights were witnessed this week along the ridges of the Appalachian Mountains and the Atlantic coastlines, marking the first strong pulse in the Eastern Flyway.

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Deforestation is Down 57% in the Winter Habitat

Deforestation in the core zone of the Monarch Butterfly Biosphere Reserve in Mexico decreased by 57.6 per cent, from 15.8 hectares lost during the 2016-2017 period to to 6.7 hectares in 2017 -2018.

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Early Thanksgiving Counts Show a Critically Low Monarch Population in California

The California overwintering population has been reduced to less than 0.5% of its historical size, and has declined by 86% compared to 2017. Each year, during a three-week period around Thanksgiving, scores of volunteers fan out through coastal California to find and count overwintering monarch butterflies as part of the Western Monarch Thanksgiving Count.

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Monarch butterflies are migrating in record numbers, but they are still at risk

You may be noticing more monarch butterflies in your backyard this year than in past years. If so, you’re not alone. Researchers estimate that this year’s monarch population is at the fourth highest level since 1993 — one of the highest of the past 25 years. Some experts anticipate the butterfly’s fall migration currently underway to be the strongest since 2008.

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