i have 10 duck eggs i got them on saturday and put them in the incubator on sunday morning. i candled them today and 2 have a heart and veins but the others haven't
i'm worried tho because the 2 that have hearts have veiny rings round them is this normal? iv read about blood rings im worried its that.

Please help if you can id really appreciate it. thanks x

Please help if you can id really appreciate it. thanks x