Irwins not due at Zoo on Father's Day

Bindi, Terri and Robert Irwin are not expected to make an appearance at an Australia Zoo Father's Day event on Sunday which coincides with the 10th anniversary of the death of Crocodile Hunter Steve Irwin.

An Australia Zoo spokeswoman told AAP the trio would not be at the wildlife park and they were keeping their movements private on the day.

Steve Irwin died on September 4, 2006 after being struck multiple times by a stingray barb while filming in the waters off the coast of Queensland, near Port Douglas.