We have a sweet little duckling has not made any improvement in the last 12 hours. She has a hole made where her beak is but no zipping. This is our first year hatching and the 4 we've hatched so far hatched pretty quickly and were very uneventful hatches, but now I'm worried about this one! It's been about 24 hours since she started hatching, but no improvement in the last 12. She's chirping and it sounds strong. Her beak is out. Should we assist or wait longer?And if so, what is the best way to do that?