Help protect Canterbury’s braided river birds this spring
Nesting is underway for some of Canterbury’s special braided river birds and people can do their bit for nature by helping to keep them safe.
Ngutu pare/Wrybills and pohowera/banded dotterels have begun nesting on the Rakahuri/Ashley River, Waimakariri and other rivers, and will soon be joined by tarapirohe/black-fronted terns, tarāpuka/black-billed gulls and others. The Ashley Rakahuri Rivercare Group has been working to help protect the birds for more than 20 years.
This year they have seen the return of a wrybill, nicknamed ‘the wizard’, they first banded 15 years ago. The male is still going strong and with his mate has already had one nesting attempt, with the chick and egg unfortunately eaten by an introduced German owl.
Each spring and summer from the start of September through to the end of February, thousands of braided river birds return to nest on the wide gravel beds of the Waimakariri, Rangitata, Rakaia and other Canterbury rivers. Their nests are perfectly camouflaged amongst the stones but are extremely vulnerable.
The threats taking a heavy toll
Eggs and chicks can be lost in an instant, disturbed by vehicles, dogs, or even a curious passer-by. Predators such as stoats, cats and southern black-backed gulls take a heavy toll. Weeds and changes to river flow make it harder still.
We are working with the Department of Conservation (DOC) and community groups to give these birds a fighting chance. From predator and weed control to habitat restoration and monitoring, we're working hard to protect the fragile ecosystems that braided river birds call home.
“Canterbury’s braided rivers are one of the rarest ecosystems on the planet. We can’t afford to lose the birds that depend on them, like the wrybill and black-fronted tern. Protecting their habitat is a responsibility we all share, and the time to act is now,” says principal biodiversity advisor Frances Schmechel.
Camera footage from Ashley River showing trail bikes near a nesting bird. Photo courtesy of Ashley Rakahuri Rivercare Group.
How the public can play a part
DOC operations manager Leeann Ellis says Canterbury’s braided river birds are uniquely adapted to this environment and are found nowhere else on earth.
“Wrybills are the only birds in the world with a bill that is bent to one side, which they use to reach insect larvae under rounded riverbed stones. Like the black-fronted tern, wrybills only nest on South Island braided rivers, so it’s vital we protect them here.
“People can do their bit for these special birds by avoiding disturbing nesting birds and driving on riverbeds during the nesting season, and keeping dogs on a leash.”
Other actions include taking rubbish home, reporting pests and volunteering or donating to community groups to support their work, says Leeann.
“Every person who visits a braided river has a role to play. These simple acts can mean the difference between a chick surviving or being lost,” Frances says.
“Remember that you’re sharing space with some of the most endangered species in the world. Together, small actions add up to a safer future for these birds.”
For more ways to help nature, visit Always Be Naturing and view our tips on protecting our rare braided river birds.
Black-fronted tern and chick from Ashley River. Photo courtesy of Grant Davey.
Black-fronted terns from Ashley River. Photo courtesy of Grant Davey.
Wrybill on nest from Rangitata River. Photo courtesy of DOC.
Black-fronted tern check. Photo courtesy of DOC.
Wrybill from Ashley River. Photo courtesy of Grant Davey.
