Share Your Butterfly Sightings

Join CVC’s Butterfly Blitz program! We invite you to share information about your butterfly sightings to helps us create an inventory of butterflies in the Credit River Watershed.

As a citizen scientist in the Butterfly Blitz program, you’ll learn how to identify butterfly species in your backyard and neighbourhood. You can take part on your own time. The data you collect will help us learn important information about local butterfly populations.

This project has a five-year lifespan, which began in 2019. As we gather more data from sightings, we can:

  • Understand where different species of butterflies can be found in the watershed
  • Determine which butterflies are locally rare or common
  • Understand if species are becoming more or less common over time

Get Involved

Become a citizen scientist and join the 2022 Butterfly Blitz!

Not an expert? Not a problem! Anyone can contribute to Butterfly Blitz, and it’s a great way to learn. If you already know a bit about butterflies or want to commit more time to the project, we’ve got options for that, too. Everyone is welcome!

This year’s Butterfly Blitz runs May 14 to September 17.

Participation Opportunities

To participate in the Butterfly Blitz program, complete the following steps.

  1. Register for iNaturalist online. Create a profile using your email address, Facebook account or Google account.
  2. Click on Community.
  3. Select Projects. Search “CVC Butterfly Blitz 2022”.
  4. Click Join.

This year we’re offering both in-person and online training. If you can’t join us in-person, you can watch a recorded version online. Training will help you understand the project goals and the expectations we have for your participation.

Online Training:

Playlist for all videos available here.

Online Session # 1: How to Find Butterflies

Online Session #2: How to Identify Butterflies

Online Session #3: How to use iNaturalist

Online Session #4: Butterfly Photography

Online Session #5: How to Conduct Timed Surveys and Use eButterfly.

When you register, you will receive an online resource kit to help your research.

There are a few different research activities in which you may take part.

iNaturalist Project

Submit photo observations of butterflies in the Credit River Watershed on your own time. Observations are welcome between May 14 and September 17.

Location: Anywhere in the Credit River Watershed
Date: May 14 to September 17, 2022
Time: Self-directed (any-time)

Timed Surveys on eButterfly

To participate in this option, you’ll commit to completing four 15-minute butterfly surveys, on your own time, throughout the summer. You’ll submit your observations to CVC through the online platform eButterfly.

Location: Anywhere in the Credit River Watershed
Date: May 14 to September 17, 2022
Time: Self-directed (any time)

CVC-Led Events

We offer guided events and training to learn more about butterflies how to participate.

Saturday, June 25, 2022 -Join us for our annual one-day butterfly count. During this event we will identify and count all the butterfly species at a natural area in the upper Credit River Watershed. The data we collect is an official butterfly census and will be submitted to the North American Butterfly Association for publication in their annual report. Register now.

Saturday, July 16, 2022CANCELLED. Join the Butterfly Blitz team for a butterfly hike. During this event we will explore Wilcox Conservation Area while looking for and learning about butterflies together. This is a great opportunity to add observations to the iNaturalist project!

  • When: Saturday, July 16, 2022 at 9:30 a.m. to 12:00 p.m. Participants must arrive on time to take part but are able to leave throughout the day and are not required to stay the full 2.5 hours.
  • Where: Wilcox Conservation Area, 431057 19th Line, East Garafraxa, ON L7K 1S9

Saturday, August 13, 2022 – Join the Butterfly Blitz team for a butterfly hike. During this event we will explore Rattray Marsh Conservation Area and learn about butterflies together. This is a great opportunity to add observations to the iNaturalist project! Register now.

  • When: Saturday, August 13, 2022 at 9:30 a.m. to 12:00 p.m. Participants must arrive on time to take part but are able to leave throughout the day and are not required to stay the full 2.5 hours.
  • Where: Rattray Marsh Conservation Area. Enter from Jack Darling Park, 1180 Lakeshore Rd W, Mississauga, ON L5H 1A1.

At our wrap-up event, we’ll:

  • Provide an overview of the findings
  • Celebrate some of the best finds and photos from the year
  • Hand out prizes to participants in several categories (e.g. most observations, most species, etc.)
  • Sign up

The celebration will be followed by a walk and butterfly survey in the surrounding natural areas– a known hot spot for migratory butterflies at this time of year.

Butterfly Blitz Wrap-up Presentation

  1. Learn about the biology, identification and habits of butterflies in our area, all while spending time enjoying nature.
  2. Contribute data to help guide the protection and restoration of habitat in the Credit River Watershed.
  3. Receive links to a registration package full of great resources, including:
    • Butterflies of Southern and Eastern Ontario fold out pocket guide
    • Local butterfly species checklist
    • Butterfly identification resources
    • Map of areas in need of butterfly observations
    • Weekly updates in the iNaturalist project with a chance to have your observation featured as the Observation of the Week.

Win Prizes with Butterfly Blitz

Prizes are awarded to those who are participating in activities in iNaturalist. Compete for prizes in the following categories:

  • Most observations
  • Most species
  • Rarest species
  • Best photo
  • Most participation
  • Lucky day prize

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