Rare Harlequin Duck A Pleasant Surprise On The Thames River

It started as a typical day. I was at my desk at 5 a.m. with a cup of coffee ready to put in a few hours of work before the sun came up. With the sun rising, I decided to take a break for breakfast. As I sat eating my oatmeal I could see it was going to be a nice day with a predominantly clear sky. Having not experienced many sunny days of late I was excited to get outside for a walk with my camera. After a quick shower and donning some warm clothes I grabbed my camera, leashed Molly (my 75lb Bouvier mix and best birding buddy), and headed out the door.

IMG 0680 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **The white cheek spot of this Harlequin Duck caught my eye as it dove repeatedly in the fast water.**

We were off for a walk along a section of the Thames River where there are always plenty of birds present. This is an area I recently started birding and have had great success at. I was hoping to get some shots of the Bald Eagles I often observe in the area. I’ve photographed eagles a lot here over the past few months but I was eager to get some shots of these majestic birds against the blue sky.

IMG 0780 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **I found this lone Harlequin Duck associating with a small group of Mallards.**

Having walked around for about an hour I had tallied a nice mix of birds and captured a few photos I was happy with. Cardinals, Cedar Waxwings, Carolina Wrens, as well as several woodpecker and sparrow species were among the birds observed. I had seen one juvenile Bald Eagle perched in a tree as well as flying up and down the river but didn’t capture the image I was hoping for.

IMG 0738 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **After watching the Harlequin Duck feeding in the middle of the river it swam over to the near bank and began to preen.**

Deciding I should probably get home and back to work Molly and I picked up our pace. Walking by a section of fast-moving water a duck diving in the rapids caught my eye. As I watched the bird dive and surface repeatedly I noticed it had a white spot on its cheek. Could it be? I raised my camera and zoomed in for a closer look. It was in fact a Harlequin Duck.

IMG 0909 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **The faint white body stripes and chestnut flanks indicate this is a male Harlequin Duck.**

The eastern population of Harlequin Ducks is listed as endangered and overwinters on the Atlantic Coast making them extremely rare in our area. In fact, this is only the third time I’ve ever seen this species in London. Back in 2015, birders flocked to the banks of the Thames River trying to get a glimpse of a Harlequin Duck that spent several weeks on the river. That bird made headlines in the London Free Press and I was even interviewed by Wei Chen of CBC radio about my experience observing the rare bird.

IMG 0809 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **First-year male Harlequin Duck found on the Thames River.**

The Harlequin Duck I found on this day wasn’t a vibrant male like the one of 2015, but rather a less colourful first-year male. At first, this bird resembled a female Harlequin but upon closer look, it faintly displayed the white stripes and chestnut flanks indicative of a first-year male.

IMG 0985 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **Harlequin Duck surfacing after a dive.**

Moving slowly along the bank I got into a position where I could photograph this Harlequin Duck. It seemed a little skittish at first but with Molly leashed and keeping her behind my crouched body it quickly realized we were not a threat. As I watched intently, the Harlequin Duck which was associating with a small group of Mallards proceeded to feed and preen unperturbed by our presence. After capturing several images and a few videos of this rare duck, we backed away slowly and left it to go about its business.

IMG 1333 - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **Harlequin Duck preening with a pair of Mallards.**

Over the years, I’ve become reluctant to give out specific locations of rare birds. With so many social media groups and other on-line avenues for reporting rare sightings these birds often become subjected to harassment by birders and photographers wanting to get a look. Too often I see the best interest of the bird as well as the habitat in which they live not being respected and therefore I no longer share locations of rare sightings. Furthermore, with COVID-19 cases raging out of control in Ontario publically sharing this or any rare bird’s location only encourages non-essential travel as photographers and birders are bound to flock to the area in an effort to get a photo or add the bird to their lists.

IMG 1042 Edit - Rare Harlequin Duck A Pleasant Surprise On The Thames River — **What started as a typical day quickly became out of the ordinary when I found this Harlequin Duck on the Thames River.**

With any luck at all this Halequin Duck will remain in the area as it seemed to be finding plenty of food and the rapids where I found it was prime Harlequin habitat. If you are out walking along the river in the city of London keep your eyes peeled for this rare duck.

Good birding,
Paul

*Watch my latest episode of Explore The Wild to see videos of this Harlequin Duck.*

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Harlequin Duck Continues To Elude Some Area Birders

Since speaking with Wei Chen this past Monday on CBC’s Ontario Morning about the rare Harlequin Duck overwintering on the Thames River, I have received several emails from fellow birders looking for assistance in locating this bird. Let me start by saying that locating this bird is not as easy as many think. I have been fortunate to locate the male Harlequin Duck most days, but it has required quite a bit of leg work.

If you still need this bird for your life list and are hoping to find it at Springbank Park in London, Ontario I would like to offer a few suggestions based on my experiences. Begin your search at Storybook Gardens and walk the section of river between Springbank Dam and the old pump house. I personally have had the best luck locating the Harlequin Duck early to mid afternoon. Most days I chose the afternoon only because I wanted to wait for the temperatures to warm up, making walking more comfortable. On the few occasions I set out in the morning I was unsuccessful locating the Harlequin.

Watermark 1 23 - Harlequin Duck Continues To Elude Some Area Birders — The fast moving water west of the pump house is a favourite spot of the male Harlequin Duck. There is a lot of tree cover on the bank and this duck is often tight to it. A methodical search in this area is often rewarding.

Be sure to look very close to the near bank as the Harlequin is quite comfortable close to shore in areas where there is thick tree cover. The section of Thames River between the parking lot at Storybook Gardens and the old pump house has a lot of tree cover on the near bank, so take your time and look as closely to the bank as you can. I have had a lot of success locating the Harlequin in the fast moving water west of the pump house, only a few feet from the bank. In open areas, the Harlequin Duck is more likely to find security mixed in with the other waterfowl on the far side of the river. It is here where scanning with binoculars can reveal its location. I personally have not seen the Harlequin Duck upstream from the pump house, so once you reach this point I recommend turning around and heading back downstream.

Further west towards the dam I have repeatedly located the Harlequin Duck in tight to shore, where the the lower road curves and carries on to the dam. If you are not familiar with this location, to the south there is a building up on the hill with washrooms and another parking lot directly behind that. The tree cover on the bank here is especially thick, but a favourite location of the Harlequin Duck. This is the most westerly location in which I have seen the Harlequin; I have yet to see it as far downstream as the dam.

Watermark 1 34 - Harlequin Duck Continues To Elude Some Area Birders — On cloudy days the Harlequin Duck’s plumage camouflages well against the dark water. Here the male Harlequin slips past some Mallards and Canada Geese.

The Harlequin Duck has been associating with a small flock of Common Goldeneyes. Scanning these small flocks will often reveal the Harlequin. Pay attention to flying Goldeneyes too. The wing beats of the Common Goldeneye can be heard when taking off. Learn to recognize this sound and immediately look in the direction when you hear it. On several occasions I’ve observed the Harlequin Duck as the trailing bird in a group of Goldeneyes as they move up or down river.

Despite the Harlequin Duck’s colourful plumage, it appears quite dark from a distance. On cloudy days the dark, shadowed water provides excellent camouflage; looking for its white markings is critical. On sunny days, the slate blue feathers blend in with the bright blue water, making sightings challenging under these conditions as well. Again, the white markings on the head and back are what best gives away the Harlequin Duck’s location.

Watermark 1 42 - Harlequin Duck Continues To Elude Some Area Birders — The Harlequin is often seen associating with a group of Common Goldeneyes.

Locating the Harlequin Duck typically takes a fair bit of legwork. You may be one of the lucky ones who gets out of your car and there it is, but be prepared to spend a few hours searching. On days when more birders are searching for the Harlequin there are many people scanning the river and sharing their sightings, but the increase in foot traffic makes the Harlequin more wary. It is on these days I have found searching as close to shore as possible the most successful.

It looks like we are in for plenty of sunshine on Saturday, so I imagine Springbank Park will be quite busy again with birders hoping to add the endangered Harlequin Duck to their life lists. If you are one of them, keep these suggestions in mind while you search and I think your chances of success will be much greater.

Good birding,
Paul

Rare Harlequin Duck Attracts Birders to London, Ontario

For the second year in a row, the Thames River in London, Ontario has revealed a rare species of waterfowl. Last winter the Thames was briefly visited by two Red-throated Loons, the first two recorded in Middlesex County since 1898.

This winter, another unique visitor has made the Thames River his temporary home. The male Harlequin Duck is easily identified by his slate blue plumage, rusty red sides and white markings. Despite its brilliant colours, from a distance this duck appears quite dark and can be easily overlooked at a quick glance. Once observed, it is difficult to put into words just how beautiful this duck truly is.

Watermark 1 12 - Rare Harlequin Duck Attracts Birders to London, Ontario — Male Harlequin Duck setting its wings after preening on the Thames River.

The Harlequin Duck’s breeding range extends from northern Quebec and Labrador to the southern portion of Baffin Island, while typically wintering off the Atlantic coast. According to the Cornell Lab of Ornithology, more than half of the eastern population of Harlequin Ducks winter in coastal Maine. Harlequin Ducks have been reported in previous years overwintering on the Great Lakes, with occasional sightings coming from Toronto, Burlington, and the Hamilton Harbour areas.

Birders from all over Southwestern Ontario are traveling to London in hopes of getting a glimpse of this rare duck. Over the past couple of weeks I have spoken with fellow birders from Stratford, Wallaceburg, Sarnia, and Waterloo.

Watermark 1 9 - Rare Harlequin Duck Attracts Birders to London, Ontario — Birders are traveling hundreds of kilometers to London,Ontario in hopes of catching a glimpse of the rare Harlequin Duck.

Since it was first reported two weeks ago, the male Harlequin Duck has been observed daily at Springbank Park in London’s west end. If you are hoping to add this duck to your year or life list, than I recommend parking at Storybook Gardens and walking the section of river between Springbank Dam and the old pump house.

Follow the well packed trail in the snow paralleling the bank. While most areas are covered in knee deep snow, this trail is easy to navigate thanks to the heavy foot traffic of all the birders. Be sure to scan both the near and far banks of the river as this duck moves around frequently, and can be a challenge to locate through the dense brush lining the near bank.

Watermark 1 5 - Rare Harlequin Duck Attracts Birders to London, Ontario — Winter provides excellent opportunities to view a wide variety of waterfowl on the Thames River. Here a male Redhead is captured flying downstream.

The Thames River in London, Ontario is a waterfowl enthusiasts dream. If you are reluctant to make the trip to London just to see the Harlequin Duck, there is plenty of other waterfowl to see. A complete list of waterfowl observed on the Thames River so far this winter is as follows:

American Black Duck
Common (pictured here), Red-breasted, and Hooded Mergansers can all be observed on the Thames River.
Bufflehead
Canada Goose
Canvasback
Common Goldeneye
Common Merganser
Greater Scaup
Harlequin Duck
Hooded Merganser
Horned Grebe
Long-tailed Duck
Mallard
Northern Pintail
Red-breasted Merganser
Redhead
Red-necked Grebe

As was the case last winter, the extremely cold temperatures have the Great Lakes freezing over, leaving diving ducks such as the Harlequin Duck migrating to inland rivers in search of open water. Open water is key to the survival of the Harlequin Duck, as they feed on a variety of aquatic life including: molluscs, crustaceans, fish, and other invertebrates. Harlequin Ducks dive below the surface and use their bills to capture prey from beneath rocks and along the river bottom.

Watermark 1 10 - Rare Harlequin Duck Attracts Birders to London, Ontario — This male Long-tailed Duck was observed slightly downstream from the location where the Harlequin Duck has been frequenting.

Aside from the open water, there is another reason why I believe we are seeing an increase in waterfowl on the Thames River over the past several seasons. Springbank Dam has been non operational since 2008, drastically improving water quality and returning the river to its natural state. As a result, wildlife is thriving in the area. By not damming the river each spring, willows, alders, poplars, and birch trees are all rejuvenating an enlarged riparian zone, an area that with an operational dam would otherwise be underwater.

This naturally reforested riparian zone provides a buffer between humans and waterfowl, giving them a greater sense of security. Allowing the river to flow freely year round improves water quality by preventing algae and sediment from building up on the river bottom. This lack of sediment permits aquatic life to thrive including the crustaceans and invertebrates that many of these diving ducks, including the Harlequin, feed on. An abundance of food, translates to an abundance of ducks. For more on how the Thames River is benefiting without the dam, read my blog post Thames River Much Healthier Without Springbank Dam.

Watermark 13 - Rare Harlequin Duck Attracts Birders to London, Ontario — Horned Grebes are among the waterfowl currently observed on the Thames River at Springbank Park.

When searching for the Harlequin Duck, or other northern waterfowl species on the Thames River, move slowly and quietly up and down the bank. These birds are not as accustomed to humans as the Mallards and Canada Geese are, and can be easily startled. Avoid sudden movements; when searching with binoculars or taking a picture, raise your camera or binoculars slowly to your face. When you do locate the bird and are pointing it out for someone else, raise your arm slowly. Be aware of any noise you may be making, whether crunching snow under your feet or the sound of your clothing brushing against tree branches. These ducks will fly at the slightest movement or unfamiliar sound.

Watermark 1 13 - Rare Harlequin Duck Attracts Birders to London, Ontario — Female Common Goldeneye.

Watermark 1 14 - Rare Harlequin Duck Attracts Birders to London, Ontario — The Harlequin Duck on the Thames River has been associating with a small group of Common Goldeneyes. Be sure to look closely at groups of Goldeneyes when searching for the Harlequin Duck.

Remember to be respectful out there, both of the birds and of other birders. I have been really impressed so far with everyone I’ve seen searching the river for this beautiful duck. No one has attempted to get too close, and all of the birders are working together and assisting others who have not yet observed the Harlequin Duck.

If you get the opportunity this weekend, head down to Springbank Park and get a look at this beautiful Harlequin Duck and all of the other wonderful species overwintering on the Thames River.

*Click on the images in this post to view them larger*

Good birding,
Paul

Update February 27, 2015: The Harlequin Duck Continues To Elude Some Area Birders, here are some suggestions on how to best locate this rare duck.