When mine hatch that's the first thing I'm going to start doing, is singing to them! your daughter might think she's just singing, but to them you are thier MOMMY! and singing helps to sooth them and makes the bond between them and you stronger! and they are of course babies, so they need comfort and extra reassurance to know that they are safe with you. This is thier first time in this BIG scary world!
I love babies............. My babies were 20 wks old yesterday.. They grow up so fast. Your Daughter singing to them is great. I talked to mine soooooo much that anytime they hear my voice they come running. Their latest antic is pecking on my kitchen door, I thought someone was actually knocking. When they bond with your Daughter she'll have such a great experience. Enjoy