Pacific Black Duck

Ok thks

Welcome to Project Noah! As Kram said, it's hard to make a positive ID on your ducks from these pics. You might like to take a look at this website: http://www.birdsinbackyards.net/finder - it has a 'bird finder' where you can enter details about the bird and it will bring up birds that match your description. If you know what the ducks look like up close you'll probably be able to find a match that way.

It has brown feathers and a lighter brown bill and yellow feet

Yeah I found it in the edithvale wetlands and it is very common

Pretty hard to identify from this photo, do you have any other info?