I'm usually far more attentive to my critters, but I was sick for a few weeks, and when I felt better I found out that my goose hen had gone broody. My best guess for age range is 2-3 weeks. Is that correct? Here are some candling pictures (I don't know if it matters, but they are buff...
I'd go by ligaments. Bagging up isn't always the best indicator, as I had a doe not bag up until after she kidded (2nd freshener). Go to Fias. Co farm's website for detailed ligament instructions.
Ideal is so far, my favorite hatchery to deal with. I've ordered the 5 Buff Orps, 5 assorted heavy chicks (I got an RIR, Barred Rock, Black Australorp (sp?), an Easter Egger. I had ordered them as 4 pullets, 1 cockerel. They forgot the the cockerel, so they let us in to pick one out!)...