On Friday, June 26 I took the day off work to go dragon-hunting at Morris Island. First, however, I stopped in at the Deschenes Rapids parking lot at the end of Woodroffe Avenue to go searching for not one, but two rare birds. The Little Egret was back after having spent some time wandering along the Jock River near Manotick, the ponds along Eagleson Road, the pond near Palladium Drive in Kanata, and however many unknown places in between. The egret has finally found a spot to its liking along the Ottawa River, spending the past few days at the mouth of Pinecrest Creek on the east side of Mud Lake or along the shore of Andrew Haydon Park in the mornings before flying off to spend the day elsewhere. In the evenings, it has been seen flying in to roost on Conroy Island, presumably because it feels at home with the colony of Great Egrets, Black-crowned Night Herons and Ring-billed Gulls that nest there. This pattern has become somewhat predictable, so that many people who missed it elsewhere have been able to see it.
In mid-June Chris Lewis received correspondence and photos from two members of the Mississippi Valley Field Naturalists regarding their recent sightings of Rapids Clubtails along the Mississippi River. A couple of these clubtails were observed along the shore at Blakeney on June 15, 2015, while one or two others were spotted at the bottom of the power station discharge channel next to Metcalfe Park in Almonte. Chris was interested in trying to track these small dragonflies down, and so on June 20th she, Mike Tate and I headed out to Almonte.
The Rapids Clubtail flies between mid-June and mid-July and is considered rare and local because of its preference for fast-moving waters along various water courses. It was first discovered in the Ottawa area by Paul Catling in mid-June 2001 when he found them at the five-arch bridge in Pakenham and at the rapids near Blakeney. In 2009, it became the first Ontario dragonfly to be added to the endangered species list; the larvae are extremely sensitive to river degradation resulting from the building of dams and increasing pollution levels. While it previously inhabited four rivers in southern Ontario, the Rapids Clubtail is now found only along the Humber and Mississippi rivers.
Rapids Clubtail habitat in Almonte (click to enlarge)