It was one of the Legcanas, Sherbert I think - the bigger of the two. I can't be sure though, I was looking from above.
We've been keeping a close eye all morning, waiting for another crow so we can check.
Even if Herbert (the Vorwerk) turns out to be a girl, Sherbert/Fizz isn't any use to us as a cockerel. He's half leghorn, and they don't make good table chicks.
It may be that Boy-Sherbert/Fizz is suppressing the development of Boy-Herbert. We had that once before, a long time ago...
...Our first foray into table birds was to buy-in some 6 week old table chicks to raise them. It was not the most pleasant experience, they were a fast growing breed and did nothing but eat. Amongst the white birds we had 2 brown chicks. One was a cockerel and the other was a hen. The cockerel had a strange gait, so we called him Lumpy (I think I had just watched Bill Murray in Scrooged, his girlfriend called him Lumpy because of the way he walked), and the other one was called Mrs Lumpy. Lumpy was culled for the table and, within days, Mrs Lumpy revealed that she was actually a boy. S/he threw off the dull plumage and suddenly a magnificent tail, saddle and crest appeared; the comb enlarged and the wattles grew. It turned out that Mrs Lumpy was one of those cockerels who was quite happy to defer to another boy.
I'm wondering if Herbert might be doing something similar? It's not uncommon to be able to keep 2 Vorwerk boys.
We've been out this morning to inspect all 3 of them, but I can't really see any evidence of saddle feathers or hackle feathers. Maybe a bit on Herb, but I can't be sure. Sherb and Fizz are doing a lot of quite rough standing off, and I'm now wondering if both are boys.
The fate for a male Legcana is: go back to the breeder (if he'll take them, which is unlikely); rehome; cull.
What we do next depends on what we're left with.
Just Herbert - boy - either get 2 point of lay pullets to keep him company, or move him to the allotment earlier than planned.
Just Herbalina - girl - get a pullet and a cockerel to keep her company? Or just a cockerel? Or just a pullet and wait until a bit later to get a cockerel for the allotment. Keep them here for a while, or introduce them to each other at the own pen at the allotment (new home for all)?
Herbert + female Legcana - Leave as they are? Or get another pullet now so that female isn't on her own to be introduced to the rest of the allotmenteers
Herbalina+female Legcana - Leave as they are, look for another cockerel, full grown this time, and put them all down the allotment, in their own pen until the girls are older, together.
In many respects, the first and last options would be the easiest to manage.
There's no point contacting the breeder until I know which one it is.