I dont think you can force a hen to incubate her eggs its like tryn to force somone to poop plus why eould you want to force her ? A hen only sets if she feels ready she needs to be in tip top shape If its a wheaten hen and. That rooster you'll proly get some grey an some red stags and pullets becouse that rooster already is a cross so you wont get concistentcy on the offspring
what is he a cross with? if you have any info on his line I would love to know!!! I got him from a classmate, who got them from his FIL, who in turn bought a few stags out of west texas, from a man on a ranch that had them as a feral flock..... he has a red roo as well...
he also told me they were a $500 pair!