Archives

The Eagleson Ponds: Adding to the species list

Heath Bee Fly

In September 2016, I started a project on iNaturalist to document the non-avian species I’ve found at the Eagleson Road ponds just after the reconstruction that took place in 2015 and 2016 was completed. I was chiefly interested in the mammals and odonates (I use eBird, of course, for birds), largely in part because I wondered if the beaver would be back after its lodge was destroyed and if there were any Rainbow Bluets or Fragile Forktails left. Then, seeing the extensive wildflower plantings after the reconstruction, I began to wonder what species of butterflies might feed here. Since then I’ve started documenting all kinds of insects, turtles, plants and mammals that I can identify on my own, and even some that I can’t…one of the functions of iNaturalist is to connect experts and knowledgeable nature enthusiasts with those who aren’t as experienced in order to assist with identifications. I have hesitated to use the site for this purpose, because identifications are done entirely by volunteers, and (a) there is no guarantee that your species will be identified, particularly for lesser known or more difficult genera (for example, I have some photos of Red-blue Checkered Beetles from July 2016 that have yet to be confirmed); and (b) there is no guarantee that the observation will be identified correctly. Generally the more people who add their identification to an observation, the better; the main identification is decided by a two-thirds majority, and once it has received two or more confirmatory identifications it is considered “research grade” and can be used by scientists for their own projects.

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Herons etc.

Black-crowned Night Heron (sub-adult)

During the August long weekend I visited the Eagleson storm water ponds a couple of times to check out the shorebird habitat – the southern pond is starting to dry up, leaving a huge swath of the smelly, muddy pond bottom exposed. The usual Spotted Sandpipers and Killdeer were present, but at least four Lesser Yellowlegs, one Greater Yellowlegs, and five Least Sandpipers had joined them. It’s still early in shorebird migration, so I expect the diversity will increase as the season progresses.

The number of herons hunting at the ponds has also increased lately, which is typical this time of year as the birds disperse from their breeding grounds to look for good feeding areas. At least two Great Blue Herons, two Great Egrets, and three Black-crowned Night Herons are around; I haven’t seen any Green Herons yet so far, but expect they will show up shortly. Because there are so many herons here, and because they perch and feed out in the open, they make excellent targets of study; I shouldn’t be surprised that they are starting to draw the attention of local photographers. I ran into one this weekend specifically to photograph the egrets and herons; doubtless there are others.

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Painted Ladies

Painted Lady

The equinox has passed and summer is showing no signs of leaving despite the changing colours of the leaves. Once again the temperatures reached the high 20s, and a heat warning went into effect yesterday, as forecasters say that the continuing sunshine would result in daytime temperatures reaching the low 30s, with humidex values approaching 40C. When I went out yesterday morning I had two targets in mind: the Parasitic Jaeger seen off Andrew Haydon Beach for the past two days, and the influx of Painted Lady butterflies that has reached eastern Ontario. I left early, as I knew the day would warm up quickly, stopping at the Eagleson storm water ponds first to see if anything new had arrived.

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Update from the Eagleson Ponds

Red-breasted Nuthatch

The Eagleson storm water ponds continue to be a great place to look for birds and other wildlife, and this under-birded gem can be fantastic during migration. I like to spend my mornings here in order to add new species to the hotspot list and new photographs to the illustrated list on eBird. As of July 29, 2017, the list stood at 125 species when I added Rose-breasted Grosbeak to the list. In the past few weeks, I’ve added four new species while others have added two, bringing the list to 131 species to date!

On August 26th I added two new bird species here: Red-eyed Vireo and Red-breasted Nuthatch. There’s just enough of a woodlot here to attract some forest birds, though they are few and far between. I heard a Red-eyed Vireo singing and was happy to add it to my list. I was even happier when I saw a Red-breasted Nuthatch in the tall pines in the same woodlot – nuthatches only show up occasionally, as do woodpeckers. Interestingly, I heard a White-breasted Nuthatch the same day, and I saw a Hairy Woodpecker fly into a tree across Meadowbreeze Drive.

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A Monarch and other mid-summer finds

Monarch

It’s been a fantastic week both in terms of weather and finding wildlife. Last Saturday I visited Andrew Haydon Park to check out the developing mudflats in the western bay. Unfortunately the water was rising again, so the expanse of sand has diminished. Several swallows were flying out over the river (species unknown), and I realized a small bird flying with them was not a swallow but something else – a good look revealed a small shorebird being chased by one of the swallows! The shorebird headed toward Ottawa Beach before circling back and landing on the small muddy area in the western bay, where I was able to identify it as Semipalmated Sandpiper – my first of the year!

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The Season of the Heron

Black-crowned Night-Heron

One of the best parts of mid- to late summer is seeing all the young birds that have left the nest foraging and learning how to survive in the wild. Some secretive species become a little more visible after post-breeding dispersal, and this includes one of my favourite types of birds, the herons. Once they arrive in the spring, they can be difficult to find outside of a few well-known rookeries once breeding season gets under way, as they prefer secluded bodies of water well away from human activity. However, once the young fledge and leave their nesting grounds, herons begin to appear in shallow ponds and creeks in local parks, both adults and young alike.

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Migrants Arrive at Mud Lake

Green Heron

On August 7th I decided to return to Mud Lake, a place I hadn’t visited in a few weeks. First, however, I stopped in at the storm water ponds to check if anything new had arrived. I saw two Northern Flickers flying over, a species I occasionally observe here, though not on every visit. Only two herons were present, a Great Blue Heron and a Black-crowned Night Heron. Three Barn Swallows were swooping over the water, and I found a young Common Yellowthroat lurking in the vegetation close to the water. Best of all, there were some new shorebirds present – two Solitary Sandpipers and a single Least Sandpiper!

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