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OWLS PowerPoint Presentation

OWLS

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OWLS

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  1. OWLS Our FeatheredMousetraps

  2. Great Horned Owl • Feather tufts • Yellow eyes • “Tiger of the Treetops”

  3. Aggressive • 20 inches tall • 5 foot wingspan • Conifer woods

  4. Defensive posture • Stay away!

  5. Great Horned owlets

  6. On the menu:

  7. On the menu:

  8. On the menu:

  9. On the menu:

  10. On the menu:

  11. Barred Owl • Quiet nature • Brown eyes • “Teddy Bear of the air”

  12. Bars or stripes • Camouflage • 18 inches tall • Woods near rivers, ponds, or lakes

  13. Cavity Nesters

  14. Barred owlet

  15. On the menu: • Frogs • Fish • Crayfish • Small mammals • Songbirds

  16. Swallow food whole

  17. Head first

  18. Gulp!

  19. What’s next?

  20. Owl Pellets • Regurgitated 8 to 16 hours later • Contains fur, feathers, and bones

  21. The leg bone’s connected to the…

  22. Where in the world?

  23. Look at base of trees where owls have been roosting

  24. Eastern Screech Owl • Aggressive • 8 inches tall • “Wild cat of the air”

  25. Two colors • Gray-brown or red • Found in small woodlots & orchards

  26. On the menu: • Large insects • Mice • Small songbirds • Reptiles • Amphibians

  27. Iowa’s Three Common Owls

  28. Iowa’s Endangered Species • Barn Owl • Once common • Monkey-like face • DNR reintroduction attempted

  29. Barn Owl chicks

  30. Owl Visitors to Iowa • Burrowing Owls • Common in western Plains states • Visits NW Iowa • Nests underground

  31. Owl Visitors to Iowa • Long-eared Owl • Long feather tufts • Smaller than Great Horned Owl • Found in Minnesota and Canada

  32. Owl Visitors to Iowa • Short-eared Owl • Short feather tufts • Often seen in daylight • Found near fields, prairies, and marshes

  33. Owl Visitors to Iowa • Saw-whet Owl • Smaller than Screech • Found in coniferous North woods

  34. Owl Visitors to Iowa • Snowy Owl • Found in Arctic • Ventures south for food in winter • Larger than Great Horned Owl

  35. Owl Visitors to Iowa • What is it? • Large white bird • Feather tufts present • Rare arctic phase of Great Horned Owl spotted in Marshall County

  36. Adaptations • Excellent eyesight • Large eyes set in facial disk • Can see 10 times better at night • Sometimes 100 times better!

  37. Adaptations • Excellent hearing • Two slits on each side of head • Handy feature on moonless nights

  38. Adaptations • Hawks have scale-covered legs • Owls have feather-covered legs • Feathers help to muffle sound

  39. Adaptations • Snowy Owl feet have an abundance of feathers • Great leg warmers for cold arctic nights!

  40. Adaptations • Close-up of outer primary flight feathers • Comb-like serrations • Creates silent flight

  41. Predator: Friend or Foe? • Historically, predators were persecuted • Today, owls and hawks are protected • Predators have an important role controlling prey populations