I count by breeds every night and I have about 40 something in the laying flock that freeranges daily. We have forgotten once or twice. Once my RIR, Reba, apparently spent the night under the coop. She ran out to greet me in the a.m. Then once it was raining hard and we didn't count. Apparently, my SLW, Lacy, had died the night before, but we found her the next day in the dust hole.