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Macoun Field Club 2018-12-10T00:26:19+00:00
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Welcome to the Macoun Field Club!

Winter has come early, and we’re in a different season. Families can enquire about having their children join at any time. Either phone Rob Lee at (613) 623-8123 (note that “Macoun” rhymes with “crown,” not “croon”), or e-mail him at Macoun@ofnc.ca. The Macoun Club is sponsored and supported by the Ottawa Field-Naturalists’ Club (OFNC); there are no fees.

photo of Fletcher Wildlife Garden interpretive center Indoor meetings take place at the Fletcher Wildlife Garden building beside the Experimental Farm’s arboretum (Building no. 138). Meetings start at 10 a.m. and wrap up between 11:30 a.m. and noon. Field trips take place on alternate Saturdays and typically run about 5 hours (sometimes with the option to attend only the part before or after noon). We go to wild places in Ottawa’s western Greenbelt (Stony Swamp) and Lanark County (the Pakenham Hills).

Schedule of Activities

Dec. 15: Field trip (call Diane at 226-3306 anytime Thursday to register)

Dec. 22 – Jan. 5: Christmas holidays

Jan. 12: The birds of New Zealand, with Gabriel McMurren

Jan. 19: Field trip

 

What are meetings and field trips like?
Here’s what we’ve done so far this year.

December 8, 2018: Monarch butterflies, and Trilobites

Photo of Macoun Club speaker Genevieve Leroux and slide of Monarch butterflies in flight

Speaker Genevieve Leroux showing photo of mass flight of Monarchs

Many of us noticed more Monarchs drifting southwest last September than we have in recent years. They were heading for their famous wintering grounds in Mexico. How do we know that? Because people like our speaker Genevieve Leroux have been placing tags on their wings, and when they’re recaptured the information fills in the map. Genevieve has tagged over 120 Monarch butterflies, and advanced conservation efforts in the different places she has lived.

Photo of fossil trilobite specimens (Pseudogygites latimarginatus and Triarthrus sp.)

The two Trilobite species found in Ottawa’s Billings shale

Next, Rob Lee brought in a box of Trilobite specimens (donated by former member William Godsoe) to give away, and he used the occasion to talk about what makes these extinct creatures unique in the history of life on earth: trilobite eyes used crystals of the mineral calcite to refine their pixelated vision. Almost all the specimens Rob brought in were the tail sections of a single species, Pseudogygites latimarginatus, that had been shed in moulting. Upon studying the piece of Billings shale she chose, Genevieve found an overlooked head section. There were also two small Triarthrus sp. cranidia.

December 1, 2018: Early winter is barely hanging on

Photo of Macoun Field Club member searching snowy creek banks for aquatic life

Garrett searching for stream life

Winter is proceeding in fits and starts, and although the snow that fell two weeks ago hasn’t quite melted away, it is getting thin. We saw several flying insects and spiders on or over the snow.

Photo of Macoun Club member Samantha posing with deer antlers

Samantha with antlers of 1st-year buck

Having penetrated far enough into the Pakenham Hills to feel we were in a really wild place, we left the familiar trails and disappeared into the snowy forest and set about making a central lunch fire. It was more difficult than we expected because even the best firewood was damp after so many damp days – snow clinging to the branches had melted and soaked in. How would Macoun members respond? They spread out and made their own fires, and cooked or warmed our meals.

Afterward, we walked over to Gerry’s cabin; while the many adults (parents and leaders) engaged Gerry in conversation about wildlife, the kids explored the streambanks. Looking up, he explained that a passing eagle was just checking for animal carcasses toward the end of hunting season, and the beginning of fur trapping. Seven of eight hunters had got their deer; he offered us a spare set of first-year antlers.

 

November 24, 2018: The wildlife of Indonesia

Photo of Indonesian islands and seas

View of Indonesian islands and seas

What would you expect to see if you travelled around Indonesia? Komodo Dragons? Check. Coral reefs? Check. Tropical birds, such as Drongas? Yes again.

Photo of naturalist Roy John

Roy John and nudibranch

Roving naturalist Roy John has been there, and showed us his photographs of all these and many more amazing creatures. He snorkeled on the reefs, and had photos of beds of corals and crinoids, and pictures that illustrated the diversity of tropical seas. He had swum with sea snakes and sharks, sea turtles and sea slugs, and seen Pygmy Sperm Whales and “Spinner” Dolphins.

Eco-tour guides also took him close to shores where Komodo Dragons stalked the sands; one of these gigantic monitor lizards took affront and, huffing and hissing, charged into the water at them. “I didn’t know they could swim!”admitted one startled Macoun Club member.

November 17, 2018: First snow

Photo of four Macoun Club members rolling a snowball more than a meter in diameter

Macoun Club members rolling a huge snowball

The day after the season’s first good snowstorm, we trudged into our Study Area from the northeast (Forestview Crescent). Any hopes we had of seeing fresh animal track that had been made overnight were erased by flurries that continued into late morning. But people had been there before us and quickly rolled up a big ball of snow. It was still there; we made it much bigger.

We passed through three Red Pine plantations dating from the 1960s and the beginning of the 1970s, and were impressed at the dense, even-aged growth of invasive Glossy Buckthorn that will soon close off these areas to easy passage. The only sign of animal life was where a Red Squirrel had cached Red Pine cones under logs, and retrieved a few to dismantle for their edible seeds.

Photo of small midge that alighted on the snow

Small midge that alighted on the snow

Although Porcupines will readily feed on Red Pine bark, they cannot normally live in the plantations because there are no big, hollow trees for them to den in. But we found these animals close by, two in towering Eastern White Pines and one in an Eastern White Cedar.

A passing insect alighted on the snow briefly; the temperature was hovering around the freezing point.

 

 

November 10, 2018: Exploring old collections

Photo of Macoun Club members identifying seashells using field guides

Identifying seashells from field guides

For 70 years, people have been donating their collections of natural objects to the Macoun Club, and today, after an introduction by Morgan, we opened six boxes of seashells and seashore life that have been sealed up for a dozen years.

Inside were hundreds and hundreds of mollusk shells – univalves and bivalves of varied sizes – and a few dried starfishes, corals, and a seahorse. We got out a microscope for closer examination. We recognized oysters and cowries and scallops; other shells we looked up in our field guides.

A very few specimens had been labeled by the collectors, such as one with a note that was dated 1955 and signed E.L.B (for the late Ed L. Bousefield, a Macoun Club leader in the early 1950s.). Some had been numbered at one time, but no catalogue has come down to us. We had a fun time, but without information on who the collector was, and where and when the specimen was acquired, we couldn’t do much more than admire the forms and colours, and learn about them in a general way.

November 3, 2018: Life in the cold, wet woods

Photo of small Porcupine in Red Oak tree

Young-of-the-year Porcupine

What would we see in the cold, wet woods, with rain still falling, and winter just around the corner? For a long time all we saw was trees — Sugar Maple, Butternut, Bitternut (Hickory), Ironwood — and we named them all. Eventually, rolling logs, we saw tiny millipedes (family Julidae) and introduced earthworms (Lumbricus rubellus). No ants or salamanders, but something one can see only at this time of year — a large wasp, an overwintering queen, concealed in a hibernating cell she’d cut into the compressed debris under the log.

Photo of Macoun Club member's hand pointing to Porcupine up in tree

It’s right there!

At long intervals we glimpsed the small birds of late autumn or winter moving about — a few Black-capped Chickadees, a Downy Woodpecker and White-breasted Nuthatch, and a Brown Creeper. Blue Jays started calling. Mostly the woods were quiet, with just the steady patter of rain on the yellow leaf litter of the forest.

All day, Rob kept scanning the treetops — the oaks and the spruces — for Porcupines, and finally, minutes before leading the group out of the woods, he spotted one. It was a very small Porcupine, just born this year. The freshly exposed, light orange inner bark of a nearby Red Oak showed what it had been feeding on, but it had moved from the big tree to a little sapling, and had nowhere to go while we crowded around.

After seeing the early departures off, the small group remaining went back for another look at this little animal, and nearby happened on two White-tailed Deer that were feeding on the last soft green vegetation to be found. Their demeanour seemed unconcerned, but their ears kept swivelling back and forth between us and passersby on a nearby trail. Finally, several dogs put them to flight.

October 27, 2018: Under the eye of the photographer

Photo of Formosan Rock Monkey in Taiwan

Rock Monkey in Taiwan

Once or twice a year Macoun Club members bring in a selection of nature photographs they have taken themselves and have the images projected on a screen for all present to appreciate. Some are fine pictures, well composed and focused; others represent well the fleeting glimpse that so often is all we get in the wild.

Photo of immature Bald Eagle

Immature Bald Eagle

Julia had travelled, and showed us a Formosan Rock Monkey, endemic in Taiwan, at home in a forest there. She’d also given her attention to exotic insects – a blue-and-red dragonfly that she knew to species, and some kind of hairstreak butterfly. She had also gone to Point Pelee in southern Ontario in hopes of seeing great numbers of migrating Monarch butterflies – but found she’d just missed the spectacle. She did get pictures of some migrating raptors: an immature Bald Eagle and a small accipiter.

Jan filled our screen with pictures of European birds he’d seen in Poland: Greylag Geese, Mute and Whooper Swans, Avocets and a Curlew.

It turns out that Niccolo, who is forever turning logs and finding salamanders, has also been raising butterflies from caterpillars, and had photos of Black Swallowtails and Monarchs, documenting the stages of pupation.

October 20, 2018: Late autumn at Pakenham

Photo of Eastern Newt in hand

Eastern Newt found under rotting log

In the Pakenham Hills, the leaves of the forest were mostly down and birds were few, but we found three different species of salamander under rotting logs: Eastern Newt, Blue-spotted, and Red-backed (the lead-backed form). Rob found an introduced earthworm, too. In a wooded hollow, we disturbed two Great Blue Herons that seemed to be hunting for frogs in a wet, sedgey place.

Photo of Meadowhawk dragonfly

Chilled Meadowhawk dragonfly on piece of clothing

We made a lunch fire on a rocky island on a bend in Indian Creek, with the water flowing by on either side. We were out of the cold north wind, and in full sunshine when the clouds parted.

A sudden urgent croaking made us look up as a Raven powered overhead, hard on the heels of a large accipter. But they swept by so quickly that we could not agree on what species of hawk. We had a better chance to examine a late autumn dragonfly too much chilled to flee. “A Saffron-winged Meadowhawk,” suggested Gabriel. “It isn’t black,” he said, ruling out one species, “and doesn’t have yellow legs or black triangles on the abdomen,” eliminating two more. “But that’s just a wild guess,” he modestly concluded.

Oct. 13, 2018: Can Chimney Swifts do without chimneys?

Macoun Club speaker Melanie Farquhar with images of her subject, a Chimney Swift and nest inside artificial chimney

Melanie Farquhar with images of a Chimney Swift and its nest

Our speaker, Melanie Farquhar, came in with lots of questions for us, all relating to Chimney Swifts. There must have been a time, only a few hundred years ago, when there were not yet any chimneys, but this species has so completely switched over that natural roosting and nesting behaviour is rarely observed. Now their population has fallen 99% since the 1970s, and people wonder if the disappearance of masonry chimneys is to blame. Would they use artificial chimneys that we build for them? Melanie’s field research examined this issue, and she said that the birds use such structures in Texas, but not here at the northern edge of the Swift’s range.

Swifts are aerial insectivores, and other flying insect-eaters have declined, too. Chimney Swifts winter in South America, and it may be that habitat loss in the upper Amazon Basin is a factor, too.

Sept. 29, 2018: Did you worry about your Study Tree?

Photo of Milk Snake sharing three friendly Macoun Club hands

Small Milk Snake sharing three friendly hands

We returned to our study area, focusing attention on our Study Tree Woods. Powerful gusts of wind had torn a gash through the forest, knocking over a dozen big Sugar Maples in a row.  It was disorienting at first, because the trees are our landmarks. As far as Rob could tell, no current member’s Study Tree was uprooted, and only one that was chosen back in 1992 (the “Sway-based Maple”) was badly damaged — it lost half its crown.  These are among our oldest trees, about 150 years.

Continuing our apple project, begun April 21st this year and resumed on Sept. 15th (see below), we headed to a familiar abandoned orchard. The trees are arranged in rows, but seem to be wild nonetheless: their trunks are multiple and the fruit is small and sour.

Among the apple trees, Niccolo and Garrett found a small Milk Snake, a seldom-seen resident of our Study Area.

 

Sept. 22, 2018: In the aftermath of wild winds (and tornados nearby)

We had scheduled a members’ photo day, but there was no power in the Fletcher building — or for hundreds of thousands of Ottawa residents. Yesterday afternoon, very strong winds knocked out electrical substations and downed hydro poles; tornadoes tore through Dunrobin and parts of Gatineau. Not all members could make it to the meeting.  We shared observations, examined a regional topographic map, and held elections, before finishing up with a brief exploration of the crabapple plantings on the adjacent Arboretum.

Sept. 15, 2018: Wild apples and a native EAB parasitoid

Historically, the Macoun Club’s square-mile nature-study area outside Ottawa was occupied by five or six farming families. The people and their buildings are long gone, but the old homesteads are still discernible by some of the non-native food plants, garden flowers, and fruit trees that have persisted for 60 or more years: Rhubarb, Lily-of-the-Valley – and Apple trees.

Wild apples from five different trees in the Macoun Field Club's nature-study area

Wild apples from five different trees

We could find only the wild descendants of orchard trees, with fruit that tended to be small (< 6 cm), hard (which preserves them from pests), and usually sour (an acquired taste). We sampled apples from half-a-dozen trees. Some were very attractive, with a red blush or red striping, but the only sweet one was a light green colour.

A native parasitoid (Atanycolus sp.) hunting Emerald Ash Borer larvae in the Macoun Field Club's nature-study area

A native parasitoid (Atanycolus sp.) hunting Emerald Ash Borer larvae

Along the way, we found many Green and Leopard Frogs, a couple of Garter Snakes, and (in a marsh) a Water Snake. After lunch, sounds like a toy horn drew us to a Bitternut Hickory with two large Porcupines high up in the crown; the ground below was dotted with hickory nuts. And in the midst of the wave of Ash tree death sweeping our Study Area (because of Emerald Ash Borer) we saw several tiny insects moving in and out around a Red Ash tree. They appear to be a native parasitoid (genus Atanycolus).

 

Sept. 8, 2018: Start-up meeting

Unidentified turtle bones

Unidentified turtle bones

By way of getting to know each other, we asked each member, new and old, what they were most curious about and would like to learn more about this year. The answers ranged from trilobites to otters. We aim to pursue some of these subjects in the course of the year.

Collection label found with turtle bones

Note with unidentified turtle bones

Rob brought out a box of bones and said it had been donated with no more identification than “Tortue sp.” (some kind of turtle). Only one member was interested in having the bits and pieces until Rob revealed that the note also included the location, right down to latitude and longitude, as well as the names of lakes and rivers where the specimens were found. Equally important, this label gave the name of the collector and the date. Rob said that with these three pieces of data — place, date, and collector’s name — this specimen would be acceptable in any museum of natural history. Now another boy wanted it. As for the species, that will have to be worked out by comparison with other specimens in a reference collection. We had a Snapping Turtle skeleton right at hand, and ruled that one out, at least.