The Blythe Valley, a catchment spanning 6537.42 hectares along the North Canterbury coastline, is a mix of pastoral dryland farming and forestry nestled within the Motanau ecological district. The catchment members own or manage land that exceeds 14,000Ha in area and traps are required to provide effective coverage over this extensive area.
This region, characterised by its remnant coastal vegetation and the unique braided river ecosystems, forms the backbone of local biodiversity and environmental integrity. Recognising the critical challenges facing their local environment, the Blythe Valley Community Catchment Group (BVCCG) has prioritised a robust pest control program.
Our comprehensive trapping efforts are aimed at curbing the population of invasive animal species that threaten the survival of native flora and fauna. This action not only supports the ecological health of Blythe Valley but also contributes significantly to the broader national goals outlined in the Predator Free Aotearoa New Zealand 2050 strategy. The group has received funding from The Rata Foundation, Environment Canterbury, Mainpower/Hurunui District Council, Lambie Ecology, and Cheviot Menzshed as well as significant financial an in kind contributions from the local community. We currently have a strong focus on trapping in the lower reaches of the braided section of the Blythe River.
Live trap.nz trapping statistics for the Blythe Valley Community Catchment Group.
Combined live trap.nz trapping statistics for community partner pest control groups including Blythe Valley, Greta Valley and Waikaire. The combined area covers 27,000 hectares.
Tui had not been seen in the Blythe Valley for over 30 years. However, they were spotted at three locations in December 2024, and again in January 2025 with a confirmed sighting of two Tui at Nape Nape Farm. Image at left taken on December 22nd, 2024.
See the table below for our successes in trapping since January 2024. Note that during this time the number of traps increased from about 50 over hectares to 225+ over 14,400 hectares. We are focused on continuing to increase the number and effectiveness of traps, along with increasing the area protected.
Trapping statistics for 2024-25
We use TrapNZ's free reporting and monitoring service both online and via app, to keep tabs on our trapping progress. TrapNZ is an integrated monitoring tool designed to support trapping initiatives such as ours. With this platform catchment group coordinators can generate reports on trap totals, collate monitoring data from bait stations, bird counts, trapping effort and more. All trappers are encouraged to use the app and if they are unable their data will be captured and uploaded to the platform by a neighbour or the catchment group coordinator. The data collected is being reported back to the catchment group members to inform progress, provide motivation, and can be made available to potential funders.
The “F-bomb” and the “Flipping Timmy” have been mostly chosen over automated traps due to cost. Access to the traps is easy and trap checking can be done as part of a regular farming beat. The cheaper trap designs allow for more traps to be placed on the ground with only a minor inconvenience associated with regular checking. In combination, these traps deliver the full suite of predator control needed to protect ground-nesting birds.
In addition, cage traps (which must be checked daily) and automated AT-220 traps (which need to be checked less frequently) are used in places where appropriate.
Native birds seen or heard during trap-checking are recorded in Trap NZ where practicable. Note is given to recording birds that are rare or rarely seen. In addition, we undertake gravel nesting bird surveys each year, seeking to engage the independent services of the experts listed on our About Us page. We also undertook a baseline possum/rat activity index survey using chew cards in spring/summer of late 2024 through the area where intensive predator trapping is happening. This was accompanied by 5-minute bird counts undertaken at 1km intervals (at least to 5 stations) along the Napenape Road, which lies adjacent to the reach where intensive trapping is taking place. These bird surveys will be undertaken annually, and the results recorded on E-bird and the monitoring function of TrapNZ.
Game cameras have been set up to monitor AT220’s and the SA2kat traps to monitor effectiveness of these traps and animal interactions with them. These cameras can also alternatively used for traps that consistently have their bait taken but don’t catch anything. Cameras will also be deployed during nesting season to monitor identified riverbird nests