A Canterbury family says the Department of Conservation is to blame for the death of their two pets keas.
The alpine birds had been a part of Ron Stewart's life for more than 30 years but on Saturday he found them dead in their aviary, Stewart told Stuff.
On Friday, a DOC ranger and wildlife veterinarian visited their home in Darfield to observe the birds.
Their behaviour was observed and the birds were weighed and a blood sample and a feather were taken from each.
Ron said he has pleaded with DOC not to take the blood and when they did it took more than an hour for the blood to be taken, causing the birds to scream in pain.