Investigating Long-Term Changes in the Spring Migration of

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APA

Milkweed USA. (2026). Investigating Long-Term Changes in the Spring Migration of Monarch Butterflies (Lepidoptera: Nymphalidae) Using 18 Years of Data From Journey North, a Citizen Science Program (listing). Retrieved DATE, from https://milkweedusa.com/research/investigating-long-term-changes-in-the-spring-migration-of-2015/

MLA

"Investigating Long-Term Changes in the Spring Migration of Monarch Butterflies (Lepidoptera: Nymphalidae) Using 18 Years of Data From Journey North, a Citizen Science Program (listing)." Milkweed USA, 2026, https://milkweedusa.com/research/investigating-long-term-changes-in-the-spring-migration-of-2015/. Accessed DATE.

Chicago

Milkweed USA. "Investigating Long-Term Changes in the Spring Migration of Monarch Butterflies (Lepidoptera: Nymphalidae) Using 18 Years of Data From Journey North, a Citizen Science Program (listing)." Last modified 2026-08-01. Accessed DATE. https://milkweedusa.com/research/investigating-long-term-changes-in-the-spring-migration-of-2015/.

BibTeX

@misc{milkweedusa_researchinvestigatinglongter,
  title  = {Investigating Long-Term Changes in the Spring Migration of Monarch Butterflies (Lepidoptera: Nymphalidae) Using 18 Years of Data From Journey North, a Citizen Science Program (listing)},
  author = {{Milkweed USA}},
  year   = {2026},
  url    = {https://milkweedusa.com/research/investigating-long-term-changes-in-the-spring-migration-of-2015/},
  note   = {Accessed DATE}
}