i put some babys under a pair of rollers (races babys) but they did not feed them? when i put then under 1 egg had just hatch and 1 hatch that day under the rollers, the rollers eggs i put under apair of rollers and the have not hatch yet but are full, did the babys not get feed because the rollers babys are not due to hatch yet. they sat babys even when dead.the rollers have had babys last year and did ok