KEY POINTS:
Shepherds move merinos towards Mt Cook during an autumn muster on Glentanner Station, MacKenzie Basin.
The merinos are brought down from the tops so they are not trapped when the heavy snow comes.
Ross Ivey and his dogs make their way down a ridge with the Burnett Range behind them. Sheep mustering in the Autumn on Glentanner Station, MacKenzie Basin, South Island. Photo / Sarah Ivey
Shepherds move merinos towards Mt Cook during an autumn muster on Glentanner Station, MacKenzie Basin.
The merinos are brought down from the tops so they are not trapped when the heavy snow comes.
“It’s currently not known how widely this substance may be circulating."