There’s something in the air up at Easter Bavelaw. As the day length shortens, this triggers a ewe to come into season. It is believed to be triggered by the hormone melatonin which has higher levels at night. Sheep native to temperate climates breed once a year. Spring is the best time to rear young, as there is plenty of grass around to fuel a lactating ewe feeding her lambs. The gestation period for sheep is 147 days, (nearly five months) so the natural breeding season i