I didnt do research here first... but the pkg says not to use until they are 16 wks or something like that... why? my girls are 12 wks and eat treatws like nuts...they also free range and eat sand in their run when I do have them enclosed... is there something in there that will hurt them if they eat it before recommended age on said pkg?? I do see where you can make your own easily enough here..but because i was new and didnt know...lesson learned... I hate having that thing sit around another month or so... AND: question from hubby that i dont know answer to: Can we get wild bird seed to give them from bird store? its much much cheaper there... as well as; plain cracked corn raw...???