I personally keep my humidity between 25-30% for days 1-17 then bump up to 65% for days 18-21. Works out well for me. I hatch a lot of turkey poults and just had a really great hatch of ameraucana mixes.
Cream Crested Legbars, BCM, Rhodebars, bearded silkies, good laced/buff laced polish, black/lavender ameraucanas
Bourbon red, red bronze, royal palm, mottled black
I also make hen saddles, PM me for details!