The test of pelvic bone !
Alhamdulillah its nit invasive and they actually dont fuss at all when you do it
So basically the 10 oclock n two pclock posioned bones just below there fent .but mostly its softly fluffy feather around not the large feathers like the tail or wings
Anyhows,so i checked a 19 week old(aftr seing some growth of comb and wattle although its not fully developed but its bright red and about 6 mm high from ots head to tip of the comb .i dont know wether this is significant but the fact of how much its growing over 3 or 4 days ma b significant indicator)
Ok so this hen i checkd was already showing squating behavior and also the spacing was about 2 or 2.5 cn with the 2 fingers fitting very easily in meaning also the side bones ie pelvic bones r also kind if flexible.this method is not torture at all ots very halal alhamdulillah
I did some reading watched few vids but one qas very helpful one article said if the measures almost 3 fingers then its only few days or a week time
So i pra this info is reassuring for farmers backyard ,etc out ther
And helps to keep healthy checks and good hope for good works that you r almost reaching the goal.and so is the hens !maybe?
So i am working as hens good willed nurse but not checking contractions and cervixes lol