I just switched over from from chick starter to FL and i bought my first bag.......i noticed when i was watching my husband pour it into the feeder that all these little black buggy things were crawling up the sides of the feeder and when i looked closer, they were crawling around inside the feed also.......i looked into the buckets we were filling with the rest of the feed and sure 'nuff, the bugs were in there also...... is this normal????