Nature Invaders Scavenger Hunt

Stop invasive species by spotting them first

Join rural landowners across the Credit River Watershed in an interactive invasive species scavenger hunt. Discover whether you have invasive species on your property and engage with CVC’s stewardship experts to learn what you can do to stop them and how we can help.

Why Participate?

Invasive species are aggressive, non-native plants that can reduce the natural beauty and recreational enjoyment of your property and your community. Removing an infestation is costly. Stop them before they spread. Spring is a key time to identify invasive plants because they’re often one of the first to pop up. It’s also just a great time to get out into your yard!

Who Should Participate?

Rural landowners in the Credit River Watershed with properties of one acre or more are invited to participate. While we encourage everyone to use iNaturalist to discover the plants on their properties, this program is specifically for landowners who meet the eligibility criteria.


The scavenger hunt officially takes place during National Invasive Species Week May 15 – 22. But you can use iNaturalist at any time to identify and report the plants you find on your property.

All rural landowners who participate will be entered into a draw to win one of two pollinator plant prize packs. We’ll reveal the winner at the Ask the Expert event. The winner will also be notified by email.

How to Participate

Participation is easy and requires no previous knowledge of invasive species. We’ll be using the iNaturalist app, an easy-to-use citizen science app that helps you identify plants and animals from photographs you take with your phone. Follow these simple steps to get started.

  1. Let us know you’re participating by registering for the event. We’ll send you detailed instructions with your registration confirmation.
  2. Download the iNaturalist app from the App Store or Google Play store. Create an account using your email address, Facebook or Google account.
  3. Join CVC’s Nature Invaders project on iNaturalist by clicking on Community and selecting Projects. Search for Nature Invaders. Click Join.
  4. Start hunting for invasive species on your property and reporting your discoveries using the app during Invasive Species Awareness Week May 15 – 22.

We’ll send you links and resources about what to look for on your property. You’ll be able to engage with CVC’s experts directly through the Nature Invaders project and at our virtual Ask the Expert event to learn more about what you’ve found and what you should do next.

Ask the Expert Event

To wrap up the scavenger hunt, we’re hosting a virtual Ask the Expert event on May 27. Ask CVC’s stewardship and invasive species experts questions about what you found on your property and what steps to take next. You’ll learn about programs, funding, and services available to help you fight invasives on your property. Register here.

Win a Pollinator Plant Prize Pack

When you participate in the scavenger hunt and submit observations through the Nature Invaders Project, we’ll enter you into a draw for one of two pollinator plant prize packs (valued at $40 each). The winners will be announced at our Ask the Expert event and notified by email.

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