Dining with Deceased Voles - PowerPoint Presentation

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Dining with Deceased Voles

By Justin BildnerPeriod 1#4Slide2

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Comparative Question/Prediction

Comparative Question: Are voles more commonly eaten by the Tyto

Albaor the Northern Pygmy Owl? Prediction: I think the

Tyto Alba eats more voles than the Northern Pygmy Owl because its options are limited to smaller prey. Even though the Northern Pygmy Owl is only a little bigger than the Tyto Alba it is very fierce and will eat prey bigger than itself. I still think the amount of voles eaten will be close. Voles are one of the most common prey among all owls and this means the Northern Pygmy Owl still eats voles as a majority when compared to other prey species just like with the Tyto Alba.Slide4
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Skeleton of Vole or in Scientific Terms

Microtus

townsendii.Slide6

https://docs.google.com/a/allendaleschoolsnj.com/document/d/1ZR1cH_Uqt1VqnmSAxO82PWdTItQfilOHsjos0Mp8XtI/edit

Click here for the Data TablesSlide7

Number of Prey Animals in the Grade’s PelletsSlide8

Types of Prey animals found in the entire Grade’s PelletsSlide9

Voles eaten by Barn Owls compared to Voles eaten by Northern Pygmy Owls

Species of Owl

Barn Owl

Northern Pygmy

Owl

Number of Voles eaten

260

104

Total Number of Prey Eaten

331

194

Percentage of Prey Eaten

79%

54%Slide10
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The Owl

There’s a wide-eyed owl

With a pointed nose,He has pointed earsAnd claws for toes:

He sits in a treeAnd looks at you;Then flaps his wings and says,

“

Tu

-whit,

tu-whoo

!”

From Canteach.com