I looked at the red one again, and if the neck seems longer than the others, it could have come from my salmon faverolle hen and welsummer roo. Just another possibility.
Cheri
Jen,
The first one looks like my red sex link, and the rest look like my cuckoo marans.
I only have the one red hen, so we will have to wait for the next set of feathers to make an attempt at an ID, lol.
The marans may be maran/maran, because of the strong indication of the cuckoo barring...