Before you go to see any prospects for your flock, go to the learning center. I believe there's some good material there about how to inspect a hen for purchase. You want to look at over all appearance. Are the feathers smooth, or ratty. Do the scales on the legs look smooth, or are they raised, crusty, bumpy? Are her eyes nice and bright? Is she standing with head tucked and head hanging, feathers puffed? Or does she look bright and alert, interacting with her environment? Are her wings tucked up, or dragging down? Are her comb and wattles nice and bright? Or are they shriveled, pale, dry? Is her beak a nice shape, with the top lining up over the bottom? Is the top beak of an appropriate size, or hooked and hanging way out over the lower beak? Is she sneezing? You should be able to do all of these checks while observing the whole flock. Then it's time for a hands on inspection: Then you'll want to inspect for mites, and take a look at her vent and pelvic structure to see is she is likely to be in lay.