He's sulking at me under the desk right now.

... and they know how to use them. Taking my family from Massachusetts, USA to New Zealand.
The application for registration of New Zealand citizenship by descent mentions that 2 photos are needed, 4 if applying for passports as well. This implied to me that it was possible to apply for both the citizenship registrations and the passports at the same time. To be sure, I emailed the Citizenship Office (at the amusing official email address: staykiwi at dia.govt.nz). I received a prompt reply that yes, I could in fact send both citizenship registration applications and both passport applications, all in the same envelope. Neat!
But that means I need to delay a bit, because the passport photos need to be witnessed by either someone with a New Zealand passport (not related), or else by someone who fits in one of the following groups (again, not related):
Unfortunately, the girls don't yet have employers. Just kidding. About it being unfortunate. And I don't feel comfortable going to the girls' pediatrician just for this. So the only other option is for my best friend, who's a teacher, to do it. She lives 4 hours away. But she's visiting next weekend, so we'll be good to do it then. Maybe I'll start working on my residency application in the mean time...