"All that rain that was cursed before Christmas meant a very prolonged breeding season for the ducks in Auckland/Waikato Region," Cosgrove said.
King Country paradise shelduck populations are healthy, just below the threshold used to consider holding special shelduck seasons.
Cosgrove said that Fish and Game has made every effort to make every licence holder aware of how they are affected by the new firearms laws.
Fish and Game had already noted that there will be no real change for the majority of game bird hunters "as a case was successfully and sensibly made to retain semi-auto and pump shotguns for game bird hunting," he said.
Game bird hunters can use these firearms so long as their internal magazines only hold five shots.
Fish and Game hopes that by now every hunter is completely familiar with the new firearms laws - and what they need to do to comply, Cosgrove said.
"We have used the channels of newsletters and online postings, in particular, to spell out to our licence holders as concisely as possible details of the new laws.
"We have also pushed the message that hunters need to be extra sensitive to the public's reactions - so they are super aware of how they transport firearms, and how people nearby might react if they hear shots," Cosgrove said.