Lepidoptera | Human migration | bird migration | Bird migration | lepidoptera | Animal migration | Migration Period | Great Migration | Assistant Secretary of State for Population, Refugees, and Migration | Macrophage migration inhibitory factor | Insect migration | human migration | Great Migration (African American) | External morphology of Lepidoptera | Reverse migration | Refugee resettlement to the United States by region, 1990–2005 ''(Source: Migration Policy Institute | Refugee migration into New Zealand | Live migration | List of Lepidoptera that feed on maples | Great Migration Study Project | Forest migration | Circular migration | ''C. c. atlanticus'', spring migration, blue morphs in foreground, North Glengarry, Ontario | animal migration |
The following year his naturalist travel journal Chasing Monarchs: Migrating with the Butterflies of Passage traced his discovery of previously unnoticed monarch migration patterns.