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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/nesting. • 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 1.0 August 20, 2013

  2. Stages of the Breeding Cycle Find and defend a territory Find a mate Build a nest and lay eggs Incubate eggs Feed and raise nestlings Fledge from the nest

  3. Find and Defend a Territory • Nearly all birds defend a breeding territory during their breeding season • Contains the resources needed to live, nest, and raise young

  4. Build a Nest • Birds use a huge variety of materials to build nests • Twigs and sticks • Dead leaves • Pebbles • Mud • Hair, fur, feathers • Yarn, string, dental floss • …many more!

  5. Cup

  6. Scrape Domed Pendulous cup Cavity Platform

  7. Lay Eggs • A clutch is the eggs laid by on female during a single nesting attempt • Laying time varies • Inter-egg intervals LS1B

  8. Incubate Eggs • Developing chicks must be kept at a certain temperature • Mostly “brooding,” (when an adult birds sits on its eggs or young to warm them)

  9. Chicks Hatch • Chicks use an egg tooth to break through the shell • Pipping is the process of breaking through the shell

  10. Hatchlings • Altricial hatchlings are completely dependent on their parents • Precocial hatchlings more developed and more independent

  11. Feed and Raise Young

  12. Fledge from the Nest • When a nestling: • Is able to leave the nest, but not necessarily fully capable of flight • Has acquired its first complete set of flight feathers • Term usually used for altricial nestlings

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