The numbers I quoted above do not include Air NSN, Airwork, Vincents or Air National. And I think those numbers are only the ALPA members that have moved but I am not quite sure on this one.
From the senority list published Feb this year Air Nsn has lost 12 pilots that I know about.
4 to Air NZ
4 to PAC Blue
3 to Jet Con
1 not quite sure were they went.
Though the numbers do not appear to be great it certainly feels like alot of movement when you compare it to past years. Lets hope it continues
