Official Event Description: Food Webs … Owl Pellets

Food Webs … Owl Pellets

An Online Submission Event


The event will generally follow the rules described in the Elementary Science Olympiad rules manual with the exception that all observations and conclusions will be made prior to the Science Olympiad tournament and submitted online. The written test described in the rules manual may not be included or may be a part of the online submissions.

2019 Event Details

NOTE: Teams are expected to obtain at least five (5) owl pellets from a commercial source.

Owl pellets should be dissected individually and observations recorded independently for each pellet. Observations and conclusions reported online may include:

  • Description of the owl pellet(s) prior to dissection.

  • Identification of bone(s) found in the owl pellet.

  • Submission of one or more photos of individual bones.

  • Number of prey species found in each pellet and evidence for that conclusion.

  • Identification of prey species found in each pellet and evidence for the claim.

  • Conclusions regarding food webs and habitats of the owl that produced the pellets.

  • Student ideas regarding ecological considerations related to owl habitats.

Number of Students

Up to 15


All necessary materials are provided by the school/team.

Online Submission Deadlines

Monday, December 10, 2018

On or before this date, students will submit observations, identifications, conclusions and evidence for their ideas, in response to directions and questions posted online.

Friday, January 11, 2019

On or before this date, students will respond to an additional question(s) regarding owl habitats, owl food webs and ecological considerations related to owl habitats.

Online Submission Link

Specific instructions for submitting responses will be shared to help students be prepared to submit online. A link to submit responses will be included and be posted online at

Scoring priorities include

  • Careful observation and dissection of the owl pellets

  • Identification of bones and owl prey species

  • Reasonable conclusions regarding owl feeding habits and ecological habitat implications.

  • Supporting claims with reasonable evidence.

 Click here to download a printed copy of the Food Webs … Owl Pellets Event Description.

Click here to download a detailed description of Food Webs Online Submission Details.