University:
Eastern Kentucky University
Course:
BIO 554 | Ornithology
Academic year:

2022
Views:

253

Pages:

2
Author:

Raina Flores

Owl Pellet Dissection KEY Name: Period: Date: Day 1: Pre-lab 1. Today you will learn about what owl pellets are and how they are formed. a. Open internet explorer and go to b. Click on Pellet Information c. Answer the following questions: 2. In your own words, explain what is an owl pellet? Owls swallow their food whole. They digest the meal and the harder material (such as bones) gets regurgitated. 3. List the 5 steps it takes to form an owl pellet a. Catching the prey b. Swallow the prey c. Digestion d. Holding the pellet e. Regurgitation 4. Owl pellets are mostly made of ____Bones____. 5. If your owl’s meal was a bird, you may also find ___feathers______. 6. If your owl’s meal was a mouse, you may also find ____fur______________. 7. Why is coughing up the pellet helpful for the owl? It cleans the upper part of the digestive system, or esophagus. 8. List the materials needed for an owl pellet dissection: a. Tweezers b. Warm water c. Magnifying glass d. Bowl to separate bones e. Owl pellets f. Bone chart 9. Read through the procedures for dissecting your owl pellet. Write out the procedures you will follow during your dissection: a. Soak pellet in warm water to soften it. b. Carefully remove the pieces of bone and place them aside. c. Consult a bone chart and find out what the owl ate. d. Reassemble the skeleton. e. Wash hands after finishing. Day 2: Dissection Lab 6. Get with your lab partner. 7. Collect the materials needed for the dissection. (See day 1, step 8) 8. Begin your dissection. Follow the proper procedures. (See day 1, step 9) 9. When finished, follow clean up procedures. 10. Don’t forget to wash your hands!! Day 2: Homework 10. What type of animal bones did you find in your owl pellet? ___(usually rodent)________ 11. Was it difficult to identify the bones? Explain how you figured out what type of bones were in your pellet. Answers will vary. They should consult the bone chart to figure out the types of bones they found. 12. Is an owl a producer, primary consumer, or secondary consumer? Secondary consumer 13. Is an owl an herbivore, carnivore, or omnivore? Carnivore 14. Explain how owl pellets show part of a food chain. Owls ! Rodent ! Scraps, nuts, berries

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