Yes you can use pet carrier - put some straw in bottom, a 2-3 in each depending on size of carrier and size of birds.Couple newbie questions. I have found some alternate breed types that I'm considering. One person has 4-5 month old hens that are a mix of Red Star and aurcana. Another has "Novogen Brownies" that are just over 3 months old.
Is it possible to get some from each person and if so, would it be best to pick them up at the same time so that they are all introduced into their new home at the same time?
Second question: how does one transport this size chicken? I have a couple hard-sided pet carriers. Can a few go in one carrier?
I've used moving boxes (medium to heavy duty, medium sized boxes) with holes cut in them on sides for ventilation and handholds, put a couple holes in top to slide some velcro or tape thru so there's air but no one escapes. Add some straw at bottom so they can nestle in or get footing. NO water - your box will get wet on bottom and may collapse and cause escape.
You can cut an X and fold back to make whatever size hole in the boxes for ventilation and handholds or tape/velcro looping points. Test fit how many boxes you can put into your vehicle so everyone still has air and you don't have to tip anyone over to do it. I put a couple full size in each box or maybe up to 3 smaller birds.