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Educators…

Educators… These teaching slides were created by the BirdSleuth K-12 team. We welcome you to share these slides with your students! You may edit this file, but please do not distribute this file (neither original or edited versions).

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Educators…

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  1. Educators… • These teaching slides were created by the BirdSleuth K-12 team. We welcome you to share these slides with your students! You may edit this file, but please do not distribute this file (neither original or edited versions). • Other resources pertaining to this content can be found at: www.birdsleuth.org/webinar-series/migration. • Need help or have questions? Please contact BirdSleuth at birdsleuth@cornell.edu or consult the BirdSleuth website at www.birdsleuth.org. Join BirdSleuth on our social networks at: • Facebook: https://www.facebook.com/pages/BirdSleuth/40097433976 • Twitter: https://twitter.com/BirdSleuth • Pinterest: http://pinterest.com/birdsleuth/boards/ • Version 2.0 July 17,2014

  2. What is migration? • Migration is the large-scale annual movement of all or some of a population between breeding (summer) and non-breeding (wintering) grounds

  3. American Robin Red-winged Blackbird Yellow Warbler House Wren Killdeer American Goldfinch Cedar Waxwing

  4. Are American Robins truly harbingers of spring?

  5. Diverse Strategies • Residents • Temperate • Tropical • Migrants • Partial Migrants Short-distance Medium-distance Long-distance

  6. Partial Migrants • In some species, some populations migrate while others don’t • Can depend on: • Food availability • Location

  7. Red-winged Blackbird

  8. Do all bird species migrate? No, some species don’t migrate at all Yeah, we don’t either! Not us Chickadees!

  9. Downy Woodpecker

  10. Yellow Warbler Long-distance Migrants

  11. Migration Pros and Cons Migration sounds scary! I’ll stay here. Winter’s a drag. I’m heading to find some insects! • Pros: • Escape the harsh winter • Better chances of finding food during the winter • Cons: • Migration is dangerous • Resident birds get first pick of nest sites

  12. Why do any birds migrate? • Natural selection favors traits that help an organism survive and reproduce. • There’s more than one way to success. • Different birds have different strategies. reproduction survival

  13. They need food! • Winter: Food is scarce in much of North America, and abundant in the tropics • Summer: A bountiful feast of insects in North America—especially important for feeding young

  14. Stay or Go?

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