Since no one here is working for US Soccer, it's impossible to know for sure, if he's seriously on their radar or not.
Team US has two friendlies in March against Chile & Ecuador.
The US coach could just do a Hudson, and look to 'cap tie' Boyd in either game. I'm not sure how that then works for Boyd if he is capped in a friendly by the US, I presume he can't then jump back to the AWs later on? ie just the one national team allegiance change in a career?
Obviously be very disappointing if that happened, Boyd's far more valuable to NZ, than the USA.
But the AWs have done it plenty of times (well grabbed age group internationals from other nations), so glasshouses and stones.
Yep, you can only switch once, so that would be that.
A technicality, but it's Boyd's U20 appearances in official FIFA competitions (2013 U20 WC) that actually provisionally cap-tie him. Friendly caps, at the YNT and senior NT level, do not change anything about a player's International eligibility, something to keep in mind.
FIFA eligibility rules work like this:
Cap-tie a player in a YNT tournament, and they can still file a one-time-switch to any country that they were eligible for at the time of the cap-tying event.
Cap-tie a player in a Senior-level tournament, and they cannot file a one-time switch to any country.
I know perfectly well how the rules work, I was just answering Coochie's question in the scenario he gave. Boyd's already represented NZ in age-group and friendly A level, so is still eligible to switch to USA if he were called up because he has a US parent. But if he did that, there'd be no coming back to All Whites because you can switch only once.