when do reindeer shed their antlers

Reindeer shed their antlers during the spring months, around April and May. This process is known as antler shedding or antler moult. During this time, the antlers fall off naturally and are replaced by new antlers, which continue to grow throughout the summer and autumn months. The new antlers are lighter and stronger, allowing the reindeer to better navigate the changing environment as they move from winter to summer habitats.