Avian botulism is a naturally occurring bird disease triggered by environmental conditions that prompt a bacteria, found naturally in soil, to produce a toxin that causes birds to die.
Francois said their main role in the mass death of birds was to determine whether an exotic (introduced) disease was involved.
“We assess, and where appropriate investigate, all reports received of multiple bird fatalities. Large numbers of bird deaths can occur, with botulism or toxic algal bloom found to be the cause in many cases.
“We always encourage people to get in touch with us directly so that, in appropriate cases, we can collect samples for testing.”
A Hawke’s Bay Regional spokesperson said if the public see dead or dying birds they should not touch, handle, or collect any of them to prevent disease spread.
“We are asking the public to help keep everyone safe. Keep dogs away from dead birds as well.”
A post on Hawke’s Bay Bird and Wildlife Rescue’s Facebook page on January 1 said its Wildlife Centre was at full capacity.
“Today, alongside Fish and Game, over 40 species, mainly ducks, have been collected either deceased or completely paralysed,” the post said.
“Those that could be saved - over 15 - have come into the Wildlife Centre for emergency care and treatment. These birds whilst paralysed can still hear, see and feel everything, they are basically stuck inside a body that will not move.
“We will continue to monitor this area for birds that need to come in for care.”
On January 2, the centre said nine more had died overnight.
If you see three or more sick or dead birds in one area, call MPI on 0800 80 99 66 so they can investigate.
Include as much detail as possible, like location, photos, and the number of birds.
LDR is local body journalism co-funded by RNZ and NZ On Air.
