A recent Secretarybird fence entanglement near Harrismith highlights the severe threat fences pose to large terrestrial birds and the importance of rapid public reporting and veterinary intervention when injured birds are found.
A recent incident near Harrismith in the eastern Free State has once again highlighted the danger that fences pose to South Africa’s birds, particularly large terrestrial species such as Secretarybirds.
Earlier this month, a young Secretarybird became entangled in a fence on a farm outside Harrismith. Unfortunately, I was only informed several days after the bird had initially been found. I travelled to the site, collected the bird, and transported it to a veterinarian for assessment. Sadly, the injuries sustained were severe, including a badly fractured leg, and the difficult decision was ultimately made to humanely euthanise the bird.
While heartbreaking, this case is unfortunately not unique. Ongoing analysis of South African fence interaction records indicates that fence entanglements are highly lethal events for birds, particularly for owls and large ground-dwelling species. Secretarybirds appear especially vulnerable, with most recorded incidents resulting in fatal outcomes. Current evidence also suggests that entrapment in barbed-wire fencing, particularly along top strands, represents the dominant mechanism of injury.
Rapid response is critical in these situations. Birds caught in fences can suffer severe trauma, dehydration, stress, circulation loss, and predation exposure within a short period of time. Early intervention may significantly improve the chances of survival.
Members of the public, farmers, birders, and landowners are encouraged to report fence entanglements and seek assistance as quickly as possible. If possible, a veterinarian or rehabilitation centre should be contacted immediately. Additionally, photographs of the fence type, location, and injuries can also provide valuable information for ongoing research into the impacts of fences on birds.
To assist with this, BirdLife South Africa has developed an information document explaining how members of the public can safely report fence entanglements and what information is most useful for conservation and response efforts.
Every report contributes to a better understanding of this overlooked threat and helps guide future mitigation efforts to make fences safer for wildlife.
