Vesper Bluet – OdoNotations

Next Gen Dragon-hunters

After I returned from my visit to southern Ontario I still had bugs on the brain, specifically odonates. Now that September has arrived the days will be getting shorter and the nights cooler, which spells the end of the season for a number of different species. It is, however, prime time for darners, and I still had yet to find a Lake Darner or Green-striped Darner this year. I also haven’t seen any Saffron-winged Meadowhawks either, another species that peaks in August and early September, despite searching known locations at the Eagleson storm water ponds. While I knew that bird migration was heating up, my brain hasn’t yet made the switch from odes to birds. I am having trouble getting up early enough to get out for my regular birding walks before work, and I won’t even consider putting my net away while the weather is still nice – I want to wring every last sunny moment looking for dragonflies and damselflies before taking the mandatory six-month winter hiatus. This has never happened to me before, and while I still am using eBird to keep track of what I see, most of my checklists are incidental ones noting only a few species that caught my attention while out later in the day dragonfly-hunting.

The 2023 Summer Odolympics

When I first heard about the Odolympics – a special bioblitz hosted by the Dragonfly Society of the Americas, Sociedad de Odonatología Latinoamericana, and Odonata Central in order to record as many odonata species from as many places in the Western Hemisphere as possible – I knew I had to participate. This specialized bioblitz is only two years old, and there are usually two Odolympics each year: one falling during the North American summer, and one falling during the South American summer in order generate a snapshot of odonate distribution throughout both hemispheres.

Dragonflies and damselflies, collectively known as odonates, are valuable indicators of a wetland’s environmental health and biodiversity. Simply put, the more odonates that use a wetland for breeding and feeding purposes, the healthier the ecosystem. Naturalists were encouraged to submit their observations during the bioblitz via one of two platforms: iNaturalist, or Odonata Central. While I love iNaturalist and have been using it for a few years now to record my non-avian observations, I began submitting my observations to Odonata Central last year when it developed a checklist-based phone app similar to eBird. iNaturalist also has a phone-based app for submitting observations, but it is intended to be used in conjunction with the phone’s camera which I only use as a backup camera when my Nikon Coolpix’s battery decides to take a nap. Although I love the ease of searching for data in iNaturalist’s projects, I chose to record my Odolympic observations in Odonata Central as it allowed me to include observations of species for which I am usually unable to get a photo (yes, I’m looking at you, Prince Baskettail and Wandering Glider!)

Orange Bluets at Andrew Haydon Park

After my successful outing at Andrew Haydon Park on July 29th, I couldn’t wait to return to see the Vesper Bluets again and to look for the elusive Orange Bluet. The two successfully share the same habitat at Petrie Island, so why not in the ponds at AHP? While Vesper Bluet habitat includes the edges of woodland lakes, ponds, and slow rivers rich with emergent vegetation, Orange Bluets are present in those habitats as well as in swamp edges, bogs, slow streams, and degraded wetlands containing varying levels of pollution. I knew they were already on the wing, as I had first seen them at the Eagleson Ponds on July 3rd and have been seeing them there on and off ever since. It was just a matter of returning to Andrew Haydon Park later in the afternoon when they would be at the water, as they spend the early part of the day in the vegetation or trees nearby.

A Bluet of a Different Colour

July is usually the start of the best three months of ode-hunting at Andrew Haydon Park. Although I often visit the park in the spring and fall for birds, my time here in the summer is devoted to dragonflies. This park is reliable for Halloween Pennants, Blue Dashers, Eastern Pondhawks, Common Green Darners, Prince Baskettails, and the usual King Skimmers, and I’ve had Cobra Clubtail and Elusive Clubtail here as well. I visited on July 29th with the hope of seeing another Cobra Clubtail, as it was on July 21, 2019 that I saw one fly into a tree on a windy day, eating what looked to be a male Orange Bluet. Though I’ve looked for both species here in July in subsequent years, I only had luck with one female Orange Bluet on July 24, 2021.