Did a spot of that M'self at Lindsay Point, flying VH-AMT way back in '90-91*, in between my 'tours' of PNG. Back then, the job was run by O'D and D Aviation.
Logged around 190 hours IIRC. Loved every minute of it and would cheerfully do the gig again if given the chance.
We had to pay for own low level endo a month before we started
I was not required to do so, and I think it improper for any Operator to require this!
And would be quite prepared to say this to any Operators face!!
*Just checked log book#2; Did my first flight (Gen handling and low level training) on Dec 6th 90 and last bird chasing flight on March 2nd 91.
After doing a MEIFR renewal I found myself back in PNG in early July.
Summary; If you get the chance to do the Bird chasing....
Do It!! Just refuse to pay for the LL endorsement!
As long as you always remember the rules re low flying, you'll have fun.
I did!!