Try calling someone who works in the department that governs this topic. They can tell you about the laws in your area. Here in Virginia there are no restrictions or licensing if you stay below selling a certain number of eggs. You can call the eggs "fresh" but you cannot call them organic...
I have to separate my drake from the girls from about April-August. You can give them short visits together and when the drake stops chasing them down, you can put them all back together
Haha, cuties! They're in that super awkward phase. Sorry about the heat lamp comment, I thought you had them in a brooder inside
What do they do when you try to get them outside? They're still fluffy, so maybe they're just cold?
Maybe for your situation it's better to use a broody if you can't moniter the incubator. A committed broody will do a better job of hatching out healthy ducklings since she will keep all the conditions right. You can always have an incubator on hand if she completely abandoned her duties
There shouldn't be a size problem with a Call duck hatching out eggs fertilized by a call duck. The duckling size will match the egg size
It's recommended not to use eggs from a duck in her very first season, but since yours are over a year old, you should be ok as far as egg size goes. Just...
Also, it's better not to wash the eggs, so keep the nest and house full of clean straw while you're collecting. You can try to wipe off a little bit of poop with a paper towel
If you can find somewhere cool and humid, that's the ideal place to store hatching eggs. I kept mine in my cellar in an egg carton wrapped in a plastic bag. I tilted one side of the carton up and rotated it. The oldest eggs I set were just a little older than one week. 10 of the 11 were fertile...
People say that ducks don't need bathing water, but mine get very dirty if they haven't been able to do a full body dunk in a while, so I don't think that's true. They have deep water in buckets daily and a chance to jump in my mortar mixing pan every week or two
I think you should also wait a little later to start collecting eggs, for the reasons above. Fertility improves later in the season
Also, you can put out dummy eggs to entice someone to sit and collect the hatching eggs elsewhere in a controlled environment. If no one goes broody, you can still...