I'm so excited to see how these work out! I've been using the standard carriers (with egg carton inserts to keep my eggs from rattling around ), and I've always felt it wasn't very sanitary. These were printed for me to fit my bantam eggs, and they fit like a glove in the incubator. I left one...
Give it a few more weeks and you will know for sure. If you aren't seeing red, it could still very well be a little pullet. One line of d'Uccle that I used to breed had pullets with very large combs early on. I could have sworn they were cockerels!
These are some birds I no longer have but some of the frizzle d'Uccle that I've bred over the past few years. A golden neck, porcelain, and a MIlle FLeur.
A friend gave me a frizzled Mille Fleur about four years ago. I then worked on getting frizzling into my Silver Milles and finally the Silver Porcelain (my ultimate goal).
I've got 6 straight-run Belgian d'Uccle chicks hatched the weekend of 4/22. Four Brown/Red and two white/gold. Pictures of chicks and the parent stock are below. NPIP/AI clean. Send me a message if interested.
I'd approach this by keeping your best one or two roosters. Of those pictured, I think your best roosters are one and two. This is based on body shape, spangling, and overall color.
That's so true. Thankfully, the SOP has a description for Gray d'Uccle, which are also birchen coloring. At least there is something to go by! (I also have Gray and Blue Silver Birchen(but that is completely off-topic for this thread!)