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04 July 2025 | Story Martinette Brits | Photo Ruan Higgs, Van Tonder Photography, and Tanya Scherman
Barn Owl
A quiet presence with a powerful impact – the barn owls nesting in the UFS Sasol Library have become unexpected ambassadors for conservation, inspiring hands-on research, community care, and a deeper connection between people and nature.

High above the shelves and silent study spaces of the Sasol Library at the University of the Free State (UFS), a quiet conservation success story is unfolding. A pair of barn owls have been nesting in the library’s roof space – raising chicks, hunting on campus grounds, and becoming an unexpected symbol of ecological balance and cross-departmental collaboration.

More than just a charming tale of urban wildlife, their presence is also prompting reflection on the evolving purpose of academic spaces.

Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation, whose portfolio includes libraries, sees the owls as part of something much deeper. “If we consider Shakespeare’s play, All’s Well That Ends Well, then the presence of the owls in the Sasol Library confirms another meaning of that play.”

“Love,” Prof Reddy says, “is not always considered noble, but is something persistent, and our library is not just a building, but a living ecosystem where precious documents, people, and even animals can interact, shape, and nurture our lives.”

The owls had been observed roosting at the library since 2016, but their fate took a turn in 2023 when a distressed owl was spotted outside the building. Tanya Scherman from the Centre for Teaching and Learning was the first to respond. “It appeared that the owl had been poisoned, most likely secondary poisoning from a contaminated rodent,” she explains. That moment became the catalyst for a grassroots conservation initiative – one that brought together concerned staff, students, and wildlife researchers.

“I phoned around trying to find more knowledgeable people who could help,” says Scherman. “I consulted with a local vet, the Owl Rescue Centre in Pretoria, and Prof Francois Deacon from our Faculty of Natural and Agricultural Sciences. I wanted to know how we could keep the owls safe on campus.”

Prof Deacon, who lectures in the Department of Animal Sciences, immediately saw the potential. “As someone passionate about urban wildlife conservation, I saw a great opportunity – not just to support the owls, but to involve students in hands-on learning,” he says. “These projects offer rare chances to study natural animal behaviour in real time, outside the confines of a lab.”

Together with his postgraduate students, Ruan Higgs and Kaitlyn Taylor, the team assessed the owls’ behaviour and advised on the design of a suitable nesting structure. They also installed a motion-triggered, infrared field camera to monitor the owls’ activity safely and without disruption.

But first, the nesting box had to be built. That part of the project became unexpectedly personal. “I worked with my dad to build it,” says Scherman. “He’s an avid animal lover too, and we spent a weekend sawing, sanding, and assembling the box using a blueprint we found online.” With the help of Prof Deacon’s team, the completed structure was carried up into the roof space and secured on a ledge that the owls already favoured. “It was such a special moment to share with my family,” she adds.

 

A window into wildlife on campus

Scherman and Prof Deacon’s efforts have already yielded encouraging results. In 2023, a breeding pair successfully raised two owlets. “This year we found six eggs,” Scherman shares. “Of those, we are currently able to see three owlets.”

For Prof Deacon and his students, the camera has opened a window into the birds’ world. “It captures feeding events, chick development, and parental behaviour,” he explains. “This kind of passive monitoring is invaluable – it provides long-term data without human interference.” The footage has already formed the basis of student research into owl diet, chick growth, and even nesting material preferences – insights that could guide future conservation projects both at the UFS and beyond.

“These owls are teaching tools,” he says. “They bring textbooks to life for students studying ecology, animal behaviour, and sustainable land use.” He adds that the project also demonstrates how scientific knowledge can directly benefit local ecosystems. “It shows that biodiversity and human development can coexist with the right approach. Even a university library can become a habitat.”

Barn owls also play a practical ecological role on campus. “A single owl pair can eat hundreds of rodents in a breeding season, reducing the need for poisons and pesticides,” says Prof Deacon. And it’s not just rodents. “We found remains of small birds and insects in their regurgitated pellets,” Scherman notes, “which shows just how active and adaptive they are in an urban environment.”

Still, their survival is not guaranteed. Urban owls face risks ranging from road traffic to poisoning. “If you ever find an injured owl or have concerns, don’t try to help it yourself,” Scherman advises. “Rather contact Prof Deacon or me. We’re here to assist.”

“Awareness builds respect,” Prof Deacon adds. “When people know that these owls are quietly raising a family above their heads, it shifts how they interact with the space. We ask people to avoid making loud noises or using flash photography near the nesting site. Simple behaviours, such as keeping windows closed at night near the roost, go a long way towards protecting them.”

 

A library as a living ecosystem

As the project gained momentum, so did its symbolic weight across campus. Prof Reddy reflects on how a seemingly disruptive moment became something much more valuable:

“It is clear that what may be seen as a disruptive incident with an owl swooping into our library space is also a pedagogical and deeply conservation touchdown.”

For Prof Reddy “it inspires us to bring science and the love of books to become a teachable opportunity. If libraries are stereotypically perceived to be the quiet corner of academia, then our barn owl event tells us that our library is also a space where silence meets storytelling. The barn owls sparked a conversation about nature, knowledge, and care. It tells us that our library has become an ecosystem of compassion, where not simply books and knowledge matter, but where every creature’s story has a rightful place. This event has mobilised so many different parts of both the university and external communities. We are greatly inspired”.

 

Changing perceptions, protecting heritage

The project also touched on a deeper cultural significance. Owls are often misunderstood, linked to myths or fear in some communities. “It’s understandable,” Scherman says, “with their eerie calls, white faces, and ghost-like flight. But they are also messengers, protectors, and symbols of wisdom in many traditions.”

She believes education is key to changing these perceptions: “Let us embrace the opportunity to coexist respectfully with nature and wildlife. The presence of owls among us is a living testament to the rich biodiversity that thrives even in urban spaces.”

For Scherman, the project was far more than a conservation effort. It was a passion project rooted in her own family history. “My grandparents also had a special connection to owls, so this felt very close to home,” she says. “Observing their habits and individuality made me feel like their caretaker. When we saw the baby owlets, I naturally felt like I was being promoted to an owl-granny!”

Prof Deacon reflects on how the project has enriched campus relationships. “What’s been most rewarding was how many people came together around this – from librarians to students to scientists. We built friendships, not just a nest box.” He adds that librarian Hesma van Tonder even joined one of their giraffe capture excursions. “That kind of connection – between research and real-life adventure – is what makes conservation come alive.”

Looking ahead, he hopes that this project will inspire more cross-campus initiatives. “We’re exploring green corridors, rooftop biodiversity zones, and opportunities to conserve other species such as bats and pollinators,” he says. “It’s only the beginning. Hopefully, other departments such as Zoology and Botany can also come on board in the future.”

 

A space for stories – and for nature

As the owls continue to thrive above the Sasol Library’s quiet corners, their presence invites the university to see its own spaces differently – as places where knowledge, nature, and compassion can coexist.

Prof Reddy reflects on this shared journey:

“The owls invited themselves because they were disoriented and distressed. As a caring university, we demonstrate through our tangible actions that their arrival further ignites our curiosity as a university with a heart. In this way, our library shows how we connect to the world by sheltering not just precious books and knowledge, but that we are an important ecosystem of empathy. Our aspirations for research excellence and impact gains new ground as a vehicle for innovation, equity, and community. My heartfelt appreciation goes out to all our colleagues who are working tirelessly on their thoughtful and dedicated interventions.”

And in closing, he offers a final reflection on what this small but meaningful story reveals about the university’s future:

“If our university matters and is to remain meaningful, our accidental visitors have given new impetus to the fact that our library space holds our stories, and they are making places for new ones as part of our responsible societal futures.”


News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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