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Warm Up: Read the passage and answer the questions on the back
Warm Up: Read the passage and answer the questions on the back. This will be your exit ticket. Essential Question: How do we determine what animals eat?
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Agenda Warm Up Review Owl Notes Owl Video Review Lab
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Owl Pellet Notes
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What is an owl pellet? Owls eat their food whole.
Owls have no teeth, so they cannot chew. They use their strong beaks to tear prey and swallow it whole.
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The owl digests its meal by separating the softer materials (meat) from the bones.
It regurgitates the harder material with fur and feathers in the form of a pellet
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How do pellets form? Swallow the prey 1. Catching the prey
Examples: birds, mice, lizards, frogs, snakes, insects Swallow the prey Whole or large chunks
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3. Digestion The food travels down the esophagus and into the gizzard
In the gizzard the meal is separated into 2 parts- those that are digestible and those that are now. Digestible material continues to pass through the owl’s digestive tract. Material that is not digestible is formed into a pellet.
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4. Regurgitation While the owl is regurgitating the pellet, it looks like it is having difficulty breathing. Once the pellet is ejected, the owl settles back into a comfortable position.
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What’s Inside the Pellet?
Anything that the owl cannot digest… Examples bones, feathers, and fur
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Rodents (Mice, Rats, Voles)
Mouse Rat Vole (short tail)
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Mole Live underground Large claws for digging Small eyes
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Shrew Pointy nose
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Food Web
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Are owl pellets important?
Yes… Regurgitating owl pellets is a way for the birds to keep their esophagus clean. The owl pellets allow scientists to learn about the owl’s diet
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Video
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Dissection Directions
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