Great thread!
This is my first year with ducks, and they are 22 weeks old. I have two Welsh Harlequin, one Runner (age undetermined, but she's not begun to lay yet), a Black Swede, and a Golden Hybrid 300.
The Golden Hybrid laid her first egg at 17 weeks, 1 day. Pretty darn impressive! She laid for about 10 days straight, took about 3 days off, and started back up again, not missing a beat (actually, as unbelievable as it sounds, two days she has laid two eggs overnight - I thought for SURE another had begun laying, but nope - it's definitely her). Metzer's describes their plumage as "drab" in color, but both DH and I find our Gabby to be beautiful! If she lays through winter, I'll be thrilled.
I'm not sure if our Welshies will begin laying this year or wait until spring; either way is fine with me. I most definitely do not like to push them.