@ptbonature
To Know, Appreciate, and Conserve Nature in All its Forms The Peterborough Field Naturalists (PFN) is a registered charity and active club in Peterborough, Ontario, Canada. The PFN has a history dating back to 1940.
#Ptbo business makes caring for the local environment a team effort. Engage Engineering staff clean the creek beside their downtown office each spring, planting native species along its banks and attracting wildlife.
kawarthanow.com/2026/03/12/p...
A photo of a gorgeous orange and black monarch butterfly resting on someone's hand. The text imposed reads: Monarchs and the internet of things: tracking eastern migratory monarch fall migration using bluetooth low energy beacons. April 14 7:30 pm upstairs at the Publican, 294 charlotte st. Greg Mitchell. Research Scientist. Human Dominated Ecosystems, wildlife research division, environment and climate change Cnada
April's Conservation Cafe pub talk will be high tech and high colour!
Join us at 7:30 pm at the Publican on April 14th for an electrifying discussion on bluetooth butterflies 🦋🛜
Get your tickets at: www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1
Get your tickets at:
www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1
Now that's a legacy.
The family of farm owner Doug Smith donated 91 ha of Ottawa’s Marlborough Wetland for conservation.
Ontario Nature's Sarah Hasenack says, “community efforts can really provide a bit of an antidote” to weakening wetland protections.
🔗: www.thecooldown.com/outdoors/don...
Tonight's the night! Runaway (like these hybrid plant species) to the Publican at 7:30 pm for a quality science pub talk!
Ontario Nature has exciting news to share! We are thrilled to announce the acquisition of 66 acres of vulnerable habitat, expanding our Sauble Dunes Nature Reserve on the Saugeen Bruce Peninsula.
Read more about Sauble Dunes North expansion here: ontarionature.org/news-release...
#OntarioNature
“I spent 30 years in awe of them—and still am to this day.” Join the Peterborough Field Naturalists for an evening with Dr. Marty Obbard, one of Canada’s most respected bear biologists. Expect science, field stories, and hard-earned insights into how bears live, think, and survive in a changing world. Don’t miss Dr. Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. 📅 March 25 📍 McDonnel Street Community Centre 🎤 Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. All welcome not just for members. Seating for this must-attend event is limited. Click HERE to register or link in Profile on Instagram: https://www.canadahelps.org/.../peterborough-field.../ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
Last day for tickets March 11
📅 March 25
📍 McDonnel Street Community Centre
All welcome not just for members.
Seating for this must-attend event is limited. Click HERE to register or link in Profile on Instagram:
www.canadahelps.org/.../peterbor...
#PFNAGM2026
Watch for them, they are around. Horned Larks (specifically the "Prairie" subspecies) are early spring breeders in southern Ontario, often arriving in large numbers by mid-February.
Happy Birthday to our PFN President and fearless leader Sue Paradisis
#peterboroughfieldnaturalists
@PtboNature
“I spent 30 years in awe of them—and still am to this day.” Join the Peterborough Field Naturalists for an evening with Dr. Marty Obbard, one of Canada’s most respected bear biologists. Expect science, field stories, and hard-earned insights into how bears live, think, and survive in a changing world. Don’t miss Dr. Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. 📅 March 25 📍 McDonnel Street Community Centre 🎤 Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register or link in Profile on Instagram: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
📅 March 25
📍 McDonnel Street Community Centre
To attend in person, via CanadaHelps by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register or link in Profile on Instagram:
www.canadahelps.org/en/charities...
#PFNAGM2026
About 70% of human–bear conflicts in Ontario are garbage-related. According to Dr. Marty Obbard, bear-resistant containers and consistent attractant management are among the most effective conservation tools we have. When bears are rewarded with food—even once—they remember. Coexistence begins at home. 🏡 Learn what decades of research reveal with Dr. Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. 📅 March 25 📍 McDonnel Street Community Centre 🎤 Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register or link in Profile on Instagram: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
📅 March 25
📍 McDonnel Street Community Centre
Get tickets via CanadaHelps by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register or link in Profile on Instagram:
www.canadahelps.org/en/charities...
#PFNAGM2026
Northern Shrike always a pleasure to see.
Happy #WorldWildlifeDay. This year's theme is Medicinal and Aromatic Plants: Conserving Health, Heritage and Livelihoods.
Reconnect with Ontario's edible plants and check out our free Northern Forest Foraging Guide here:
onnaturemagazine.com/northern-for...
#forage #guide #ontarionature
Polar bears and black bears inhabit different ecosystems and employ different survival strategies. Yet after decades of studying, one similarity between the two species still surprises renown Canadian bear biologist Dr. Marty Obbard: “The bond between a mother and her offspring—it’s extraordinary.” Whether observing black bear dens in winter or handling polar bear family groups on the tundra, Dr. Marty Obbard witnessed the same fierce maternal connection. Cubs huddled against immobilized mothers. Cubs charging in defence—then retreating. Behaviour shaped not by instinct alone, but by learning and care. 🐻 Hear these stories firsthand at Dr. Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. Wednesday, March 25, 2026 from 6:00PM to 8:30PM McDonnel Street Community Centre Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register, link in bio on Instagram: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
Wednesday, March 25, 2026 from 6:00PM to 8:30PM
To attend in person, via CanadaHelps by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register, link in bio on Instagram:
www.canadahelps.org/en/charities...
#PFNAGM2026
The Land Between aims to protect Ontario's at-risk turtle species with groundbreaking ecopassage designs. Designed to steer turtles & other wildlife away from roadways, the durable passage have been installed at four locations in #Haliburton County & #Ptbo County. kawarthanow.com/2026/03/01/t...
Black bears roam forests. Polar bears hunt seals from sea ice. Different ecosystems—but the same underlying driver: food availability. As Dr. Marty Obbard explains, polar bear ecology is shaped by access to seals, just as black bear ecology is shaped by berries and mast crops. When sea ice disappears, polar bears are forced ashore—testing the limits of adaptation. From boreal forest to Arctic tundra, Dr. Obbard connects the dots in his keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. Wednesday, March 25, 2026 from 6:00PM to 8:30PM McDonnel Street Community Centre Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register or in Profile on Instagram: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
Wednesday, March 25, 2026 from 6:00PM to 8:30PM
purchase your tickets via CanadaHelps by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register or in Profile on Instagram:
www.canadahelps.org/en/charities...
#PFNAGM2026
Black bears roam forests. Polar bears hunt seals from sea ice. Different ecosystems—but the same underlying driver: food availability. As Dr. Marty Obbard explains, polar bear ecology is shaped by access to seals, just as black bear ecology is shaped by berries and mast crops. When sea ice disappears, polar bears are forced ashore—testing the limits of adaptation. From boreal forest to Arctic tundra, Dr. Obbard connects the dots in his keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. Wednesday, March 25, 2026 from 6:00PM to 8:30PM McDonnel Street Community Centre Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
Wednesday, March 25, 2026 from 6:00PM to 8:30PM
To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register:
www.canadahelps.org/en/charities...
#PFNAGM2026
Climate change doesn’t just affect bears—it reshapes their life history. Black bears mate in June, but implantation doesn’t occur until fall—and only if the female has enough fat reserves. When drought shrinks berry crops, reproduction can fail across entire regions, synchronizing low cub production and increasing human–bear conflict in subsequent years. These patterns have already been documented in Ontario. Learn how food, climate, and behaviour intersect in Dr. Marty Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. Wednesday, March 25, 2026 from 6:00PM to 8:30PM McDonnel Street Community Centre Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
Wednesday, March 25, 2026 from 6:00PM to 8:30PM
To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register:
www.canadahelps.org/en/charities...
#PFNAGM2026
Bears don’t just react—they learn, remember, and generalize. Dr. Marty Obbard documented black bears traveling over 100 kilometres to find food when berry crops failed—then returning to those locations in later years. In cottage country, that same intelligence explains why unsecured garbage leads to repeat visits. The takeaway? 🧠 Bears are exceptional problem-solvers. 🗑 Human behaviour often determines conflict. Dr. Obbard explores both in his keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. 📅 Wednesday, March 25, 2026 from 6:00PM to 8:30PM 📍 McDonnel Street Community Centre 🎤 Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register: www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1 If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN AGM
Seating for this must-attend event is limited. Click HERE to register:
www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1
#PFNAGM2026
💧 Conservation authorities prevent over $150M in flood damage each year!
Don’t let the province consolidate 36 into 7 — local knowledge matters.
✍️ Sign the petition to re-empower conservation authorities:
ontarionature.good.do/conservation...
#conservationauthorities #ontarionature
Bluff charges aren’t about attack—they’re about communication. While studying black bears in northern Ontario, Dr. Marty Obbard documented a graduated system of displays used to maintain distance and avoid injury: posturing, huffing, jaw-popping, and—sometimes—a charge that stops short. These are the same signals bears use with each other—and with us. Understanding them changes fear into awareness. Learn how bears “talk” with Dr. Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. Wednesday, March 25, 2026 from 6:00PM to 8:30PM McDonnel Street Community Centre Peterborough Field Naturalists AGM To attend in person, please purchase your tickets via CanadaHelps by end of day on Monday March 11th. Seating for this must-attend event is limited. Click HERE to register: https://www.canadahelps.org/en/charities/peterborough-field-naturalists/events/peterborough-field-naturalists-85th-agm-1/ If you have items to donate to the Annual Online Auction, held virtually in conjunction with the Annual Meeting, contact Fiona McKay at fcmckay@peterboroughnature.org or reach out to info@peterboroughnature.org. Deadline for donations is March 15, 2026. #PFNAGM2026
PFN’s 2026 AGM.
Wednesday, March 25, 2026 from 6:00PM to 8:30PM
McDonnel Street Community Centre
Peterborough Field Naturalists AGM
Purchase by end of day on Monday March 11th.
Seating for this must-attend event is limited. Click HERE to register:
www.canadahelps.org/en/charities...
Join me in opposing changes to the mandate, resourcing and independence of conservation authorities that make it harder for them to fulfill their crucial role.
ontarionature.good.do/conservation...
PFN encourages all members to comment on the Jackson Park Management Plan survey, which is due Friday, February 20th. People can also send emails to the lead city staff, noted in ConnectPtbo at: www.connectptbo.ca/jackson-park
Here is the link to the survey: www.connectptbo.ca/jackson-park...
🌍🦞 Wow, just wow. A Grade 10 student in Mississauga discovered a prohibited invasive species, the red swamp crayfish, at Lake Aquitaine in Ontario, prompting a rapid response effort from conservation teams.
More by @anushkayadav.bsky.social here:
thepointer.com/article/2026...
#ontarionature
The Society for Ecological Restoration - Trent University chapter hosts monthly events called the Ecological Restoration Speaker Series (ERSS) throughout the academic year. The purpose of these events is to promote open discussion regarding ecological restoration and related discourses and to help foster an open dialogue between those actively practicing it in the field to students, faculty and community members. As such, these events are open to anyone who would like to join! The next scheduled speaker is: Tyler Jamieson - Friday, February 27th Location: BL 103 Time: 4:30 pm Tyler Jamieson will be presenting on ecological restoration in the private sector. Reflecting on his experiences implementing ecological restoration standards & principles in the private sector while overcoming the challenges encountered and lessons learned along the way.
Camp Kawartha Environment Centre reach its goal of raising $5,000 to support our environmental education programs, stewardship activities and community partnerships. Win an Early Bird Draw of 1 week of March Break Camp!**
** or Nature School Equivalent
www.rafflebox.ca/raffle/campk...
“Bears are social animals with complex social structures.” Long before GPS collars and big datasets, biologist Dr. Marty Obbard learned his most important lessons by watching and listening. From black bears in Ontario’s boreal forest to polar bears on Arctic sea ice, Dr. Obbard has spent decades observing how bears communicate, avoid conflict, raise young, and respond to changing environments. Hear Dr. Obbard’s keynote address Bears I Have Known – What bears taught me when I was prepared to watch and listen at PFN’s 2026 AGM. 📅 March 25 📍 McDonnell Street Community Centre 🎤 Peterborough Field Naturalists AGM Seating for this must-attend event is limited. Registration opens soon. #PFNAGM2026
