January This is the month with the most births. Mothers give birth a few days after arrival. While labor may be long, the actual birth usually takes only a few minutes. Mom immediately turns to bond with the new-born, sniffing, listening, and “talking” in a...
February Birthing peaks in January and continues into February. Mating peaks in mid-February. There may be fights as males try to improve their standing. As their mothers leave the beach to finally break their fast, the weaned pups gather in “pods” near the bluffs,...
March Adult males that arrived in December leave the beach. They have lost as much as 40% of their weight, after fasting for over three months. The older weanlings will begin to make their way to the near-shore waters. For those raised on the higher, distant parts of...
April – May Adult females that left the rookery after weaning their pups, as well as juveniles that were out at sea all winter, begin arriving late in March. This is the start of the molting season. Growing new skin at sea would cause a tremendous heat loss....
June – September In June we begin to see the arrival of males with the first sign of puberty – the growth of the nose (proboscis) which begins at about age five. As the molting season continues, we then see more older males, finishing with the arrival of the...
September – November Before all the big males have left, the fall haul-out begins. Juveniles of both sexes return from their post-molt migration. They have been at sea since their molt in the spring. As youngsters, they come ashore in the fall, but as they grow...
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