This is my first turkey hatching attempt and tomorrow is day 25 when I take them off the turner and I'm wondering when you usually start hearing them start chirping before they hatch?
Good luck with your hatch. I will often see eggs starting to crack before I hear anything. It varies greatly with your particular hatch. Maybe day 26, maybe 27, maybe even early on day 28. I would start looking for very faint cracks as the first sign of hatching, and maybe some rocking. The peeps will come.