I'd just handle that chicken or chickens for a couple days ahead. Pick one or a couple you can always choose, like if they're all the same, mark them somehow with a band or water marker. Take them out and spend a few minutes carrying them around and have some good treats, like scrambled eggs...
Yes, you found it! (I fixed the link above too. Not sure what I had done. 🤔)
There are other articles and posts but I just liked how she put it there so consise and complete.
For example, a lady selling homemade saddles on Etsy. She advertised them in the Buy/Sell forum properly, but put the link to Etsy there. Staff removed it and she's got it in her signature now. Another way is to tell folks to message you and then in the message you can give the link.
Ah, well you speak of egg and chick sales above so just mentioning it without realizing you're a youngin yet. :) Good to get this going now though, and wishing you the best!
Good luck on your new venture! ☺️
Just some tips for you: This is fine here, but we do have a https://www.backyardchickens.com/forums/pictures-stories-of-my-flock.39/ forum too you might consider. That's usually where most put their flocks to discuss with others. Sometimes those get more...
One thing that helps is for the dog to know those are your chickens. Could you bring one out and cuddle and talk to the chicken in front of your pup, then let the pup smell the chicken? I'd do that once a day or more if you can. Then it'll understand those are yours.
I think they'll definitely be anxious to have more room in their run.
Food/water shelter, and room to scratch around and catch bugs is about all they need.
Congrats on getting them into their new home!