foaming chick

I honestly wished I would have taken pictures when this happened, but I was in a state of panic and having ti deal with a hysterical little sister. I got 2 small bantams in my mail-delivered chicks from My Pet Chicken. One of my Delawares died in transit (looked like it was a "mushy" chick)...

Yesterday was day 21 for Paint Silkie eggs, one chick had foam coming out of egg half way through the zip. I have never seen this before so I didn't end up helping the chick till this morning because I had no idea what it was. The chick is all clean and in Hatcher drying off as of this morning...