Hatching POLISH eggs...Day 21 questions

[Yard full o' rocks]

I am hatching POLISH eggs for the first time for the DW. Today is Day 21 for them. One hatched last night, only 1 other pipped. 9 doing nothing. All 11 looked great on Day 18. I hatched 5 of 5 Del/BO crosses from my own girls in this same hatch so I am pretty sure temp/humidity were ok. Anyone with experience on Polish eggs? Are they typically a little later? The one pipped one has been pipped about 18 hours....time to intervene? Looking for ANY advise. Typically I have hatch rates of 75%+, even with some shipped eggs. Thanks

 

[DUccleDude]

they should all hatch around the same time within 24 hours of each other
i would intervene the pipped one at 24 hours

 

[mikenandrea]

I just hatched quite a bit of Polish chicks.. One hatched on day 21, the rest hatched on day 22

 

[Chrissyc1]

mine hatched at day 20. this was just last night. two haven't hatched yet though, but four did. good luck!!!