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Bird Migration in Northwest Ohio

Bird Migration in Northwest Ohio. Why do birds migrate?. Lack of adequate food sources In particular, insect-eating birds Climate/weather Ice cover on lakes Waterbirds are forced to move south. Warbler and food. Other migratory animals. Mammals. Insects. North American Flyways.

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Bird Migration in Northwest Ohio

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  1. Bird Migration in Northwest Ohio

  2. Why do birds migrate? • Lack of adequate food sources • In particular, insect-eating birds • Climate/weather • Ice cover on lakes • Waterbirds are forced to move south

  3. Warbler and food

  4. Other migratory animals Mammals Insects

  5. North American Flyways

  6. Pacific Flyway

  7. Central Flyway

  8. Mississippi Flyway

  9. Atlantic Flyway

  10. Timing of migration Spring Fall • Jan-Feb – waterfowl • Mar-Apr – hawks, sparrows, blackbirds • May-Jun – songbirds (warblers, vireos, thrushes, flycatchers, etc.), shorebirds • *The greatest species diversity is in May • Jul-Oct – shorebirds • Sep – songbirds • Oct-Nov – hawks, sparrows, blackbirds • Nov-Dec - waterfowl

  11. Factors influencing local migration • Weather – wind direction, thermals • A “wave” of birds can occur with proper conditions • Hormones • Day length • Geography • Lake Erie acts as a barrier to migration • Maumee River – a habitat corridor

  12. Weather Wind direction Effects of thermals – a kettle of hawks

  13. Hormones

  14. The Great Lakes

  15. River corridors

  16. Where are they going?

  17. American Golden-Plover Nest on the Arctic tundra and winter in southern Argentina; they travel a round trip distance of some 15,000 miles

  18. Blackpoll Warbler Blackpoll warblers nest in the spruce forests of Canada and Alaska and migrate to South America for the winter; part of their migration is non-stop for ~2500 -3000 miles!

  19. Nocturnal Migrants • Many songbirds migrate at night including thrushes, warblers, sparrows, tanagers, flycatchers, orioles, wren, etc. • Safety and opportunities to feed during the day

  20. Diurnal Migrants • Other birds migrate during daylight hours including ducks, shorebirds, hawks, swallows, gulls, etc.

  21. Habitat Use Large Scale Small scale

  22. Migrants in your Yard

  23. Stopover Sites Refueling, resting

  24. Important Local Areas • Wood County areas • County parks (e.g. Baldwin Woods) • BG parks (e.g. Wintergarden) • Maumee River corridor • Oak Openings Region • Western Lake Erie Marshes • Magee Marsh • Ottawa National Wildlife Refuge • Metzger Marsh • Maumee Bay State Park

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