Is there an age where chicks are old enough to figure out a nipple waterer? We have chicks that are 1-2 weeks old. I know they know where the water comes from. If I push the button the come and drink. And I've seen them TRY to get water from the nipple. However I've never seen them actually SUCCEED in getting water. Do we need to give them a standard waterer until they're a little bigger?