I currently have 3 Duclairs that are 7 weeks old right now. It’s my first year with ducks and I don’t have any Pekins, so I can’t compare those two breeds. I do have Cayuga, Welsh Harlequin, Khaki Campbell, and Blue Runners to compare them with. Out of all those breeds they definitely have the most playful personalities. Even as ducklings they were the ones claiming their thrown on top of the brooding plate, the first ones to chow down at treat time, and the most inquisitive of the world around them.
They are significantly larger then all my other ducks. 2 of my 4 Welshies and my 2 blue runners are a week older than everyone else. My Duclairs caught up with them at 3 weeks old and have been noticeably larger since they were 5 weeks old. I haven’t weighed them yet, need batteries for the scale, but we do plan on weighing everyone ASAP and weekly thereafter until we process the ones that we aren’t keeping. Because of their larger size they do seem to get slightly more stressed in the heat compared to the others, but we hit the 100s last week during our heat wave and they all survived without any extra help from me besides making sure the pool was full for everyone to play or drink off needed.
Originally we planned on eating all 3, but since everything I ordered was a straight run we ended up with more boys than girls. Except with our Duclairs it was 2 girls and 1 boy. Because of their wonderful personality we’re going to keep the girls and process the boy when he’s ~12 weeks old. We’ll have to see how well the girls fair in our heat and laying eggs once their old enough.