Amazing Mammalian Encounters

Red Fox

It’s been a wonderful month for encountering fascinating mammals in unusual places. Many species are more visible this time of year as they leave their winter sites to establish breeding territories or look for mates. They are busy out foraging for food now that plants, insects, reptiles and amphibians are more abundant in the ripening spring, waterways are open, and the forest ground is free from snow. Small mammals are no longer hibernating or confined to the strange subnivean world that exists between the ground and its roof of snow. Both predator and prey are more active, and it’s hard not to come across any mammals of interest if you are outside often enough.

Predators Close to Home

Snowy Owl

Those in my friend and birding circles know I have been dealing with serious health issues since last fall…serious enough to have to take a medical leave of absence from work, and leave me feeling unwell enough to get outside birding for much of that time. The timing could not have been worse as the Omicron variant hit our region in late December and peaked in late January, its insane transmission rate leaving me feeling vulnerable every time I had to leave the house. I stayed home except to go to a medical appointments, despite many offers from friends to go birding, as I couldn’t risk catching COVID while my health was still fragile. However, things are improving on both fronts: the Omicron wave is receding, and I had surgery five weeks ago, and am slowly regaining my strength and mobility. If ever there was a time to be out of commission, this is it: winter is my least favourite season, with its bitterly cold days, icy trails, and lack of flowers and insects. Winter is more a time for chasing than exploring, and while we’ve had a couple of great rarities turn up, I was in no condition to go after them myself.

June Atlassing Highlights

Blue-winged Teal (male)

June is my favourite month of the year. This is the month when most insects begin to emerge, their bright wings bringing life and colour to forests, meadows, ponds and backyard gardens. Birds are in full song, and the air is fragrant with all the flowers in bloom. While butterflies and dragonflies become my main focus this time of year, this month I had a second agenda: to continue to look for evidence of breeding for the third Ontario Breeding Bird Atlas. Since I am still working from home as a result of the pandemic, I devoted my morning weekday walks to looking for birds and my longer weekend excursions to looking for all types of wildlife, particularly dragonflies. I thought birding would become boring once migration ended and the resident birds settled down into the more predictable routine of nesting season, but to my surprise I was wrong.

An Early Spring

Eastern Chipmunk

It’s been a while since we’ve had an early spring in Ottawa. In recent years it seems that the snow hasn’t melted until late April, it hasn’t really warmed up until May, and while the first couple of waves of migrants arrived on time, migration slowed down for a few weeks sometime in April when the north wind started blowing out of the Arctic again. Insect-eating birds were delayed, the butterflies and dragonflies emerged late, and then the Victoria Day long weekend hit and suddenly summer has arrived with temperatures in the mid to high twenties.

This year, however, it warmed up early and stayed warm. Our last subzero day was March 16th, and we regularly started reaching double-digit temperatures on the first day of spring, with nine days at 10°C or higher during the rest of the month. Our total snowfall in March was only 6.8 cm, below the normal range of 11 to 84 cm, and it was the windiest March since 1974. It was the 10th warmest March on record; our highest temperature reached 19.8°C, above the normal range of 8.3 to 19.2°C. I kept waiting with dread for one last cold spell or dump of snow, but so far April has been even nicer, with the first two days reaching only 3°C and the rest (to date) ranging from 10 to 24°C. As the snow disappeared quite quickly last month, plants are emerging from the ground early, buds on trees are starting to leaf out early, and butterflies are emerging early. It’s been great for my mental health to see so many signs of new life and renewal.

Boxing Day Frugivores

Cedar Waxwing

Recently I’ve noticed a small flock of waxwings flying outside my house from time to time. Because of the distance I haven’t been able to determine which species of waxwing, and again this morning I noticed a flock while putting the garbage out. I stopped to watch them while they circled the street before flying off. There is a small crabapple tree in the yard across the street from mine, and I’ve been waiting for the last month for either the Bohemian Waxwings or Pine Grosbeaks to discover it. However, the waxwings didn’t land in the tree, so I went back to gathering my green bin and recycling box from the garage. It wasn’t until I made a second trip out to the curb that I realized I could hear a few Cedar Waxwings calling. I looked up, and in the tall deciduous tree next to the crabapple tree I saw about 25 Cedar Waxwings perching.

Goose-watching in Kanata

Ross’s Goose

November is goose season here in Ottawa. While flocks of local Canada Geese start gathering together in late September, geese from much further north begin arriving throughout October, once the lakes and rivers on their breeding grounds in the territories and along Hudson’s Bay freeze over, until their numbers peak in November. Ottawa is an important staging area for many different waterfowl species, as the Ottawa River and numerous small lakes and ponds in the area often remain open well into December; the geese rest on these bodies of water during the night, then go feed in the numerous agricultural fields just outside the city during the day. This is the time to look for Snow Geese and the diminutive Cackling Geese among them; if you are lucky you will find a Greater White-fronted Goose hiding within the flock – or something much rarer.

A Barnacle Goose in Ottawa

Barnacle Goose

A Barnacle Goose showed up in Ottawa earlier this year, although at first I didn’t pay much attention to the reports. It was observed along the Rideau River between Hurdman and Billings Bridge on May 28th and 29th, and if I had been working downtown at the time – only a short train ride from Hurdman – I might have gone to chase it, despite the concerns about the bird’s lineage. The thought at the time was that it might have had some Canada Goose ancestry, and Billings Bridge was too far out of my way to chase a bird that might or might be countable on a work day. The bird disappeared for a while, then showed up again in the west end on June 23rd – this time at Nortel Marsh – before spending the first week of July at Wesley Clover Parks just off of Corkstown Road.

The Baskettails of Spring

Beaverpond Baskettail

In most years dragonfly season begins around the Victoria Day weekend (which always falls on the third Monday of May). I remember visiting Mud Lake on the long weekend in years past and seeing up to a hundred of freshly emerged dragonflies perching in the trees there. However, in the last few years it seems that dragonfly season has started later than normal – the long-lingering cooler spring weather has played a large part in this, as emergence depends chiefly on the temperature of the water the dragonfly nymphs are living in. By the second weekend of May I’d go out eagerly hoping to see the first dragonflies of the year, and by the end of May I’d still be looking for them. Even when I eventually found some, such as last year, numbers would be low, and it would take time for the season to get back on track. Numbers remained low in Ottawa all summer last year for some reason, though we think that the unprecedented spring flooding might have been the cause, either washing away the small nymphs or dumping unhealthy amounts of debris, sediment, and chemical-laden runoff in areas where they breed.

Snippets from Migration

Common Yellowthroat

Migration has been strange this year. Because of the lengthy cold spell at the beginning of May it seemed as if migration had stalled; for so long I felt as though I were waiting for it to begin, then things happened so quickly that now I wonder whether it has passed me by. The White-crowned Sparrows that usually show up in my backyard every year between May 3rd and 5th didn’t arrive until the 14th; the Common Terns that arrive at the Eagleson Ponds between May 10th and May 14th didn’t arrive until May 19th. Neither species stayed long, either. The terns were only there for one day before moving on, instead of spending two or three days. It is harder to know if the White-crowned Sparrow I saw over the course of a few days was the same one or a different one, as many have been singing in our area in the middle of the month.

The warblers came, and the warblers went. I’ve had several Black-throated Blue Warblers this year, and many repeat sightings of local breeding species – but of the ones that only pass through, I’ve sometimes only been lucky to get one: one Cape May Warbler, one Blackburnian Warbler, one Tennessee Warbler, one Bay-breasted Warbler. Again, is this a reflection of my spending time mainly in Kanata south, rather than heading for the migrant traps along the river? There have been excellent reports from the usual spots (Mud Lake, Andrew Haydon Park), but even as the city parks reopened on May 6th and the NCC parking lots reopened on May 22nd as a result of declining Covid-19 cases in the city, I’ve been reluctant to go to the normal spring hotspots to avoid the crowds that tend to gather there, both birding and non-birding alike. This has less to do with any fear of the coronavirus than my preference for quiet birding experiences, away from the loud chatter and narrow, crowded trails that both increase exponentially as the spring wears on and weather warms up.

Early Spring Wildflowers

Canada Violet

Spring not brings the birds and butterflies back to the Great White North, it also brings wildflowers, the earliest of which are known as spring ephemerals. These perennial woodland wildflowers grow early each spring, quickly blooming and producing seed before the deciduous trees leaf out and prevent the sunlight from reaching the forest floor. Once these wildlflowers have gone to seed, the leaves and stems above ground often wither and die off, leaving only the underground structures (including the roots, rhizomes, and bulbs) alive during the remainder of the year. This strategy allows many different plants to thrive in deciduous forests by taking advantage of the early spring sunlight prior to the development of the tree canopy.