Since 2018 volunteers from the ORCA Foundation have been assisting us with regular boat-based counts of Cape fur seals that haul out on Robberg Peninsula. Apart from routine counts of adult seals, which appears to have levelled off since 2012 despite seasonal fluctuations in their numbers (based on Cape Nature’s counts), we were surprised by the large increase in the number of pups born during the 2018/2019 breeding season. A minimum estimate of over 800 pups revealed almost twice the numbers that were recorded during the previous season, which was also consistent with a two-fold increase in pup mortality from stranding records. These data suggest that the Robberg seal colony may have experienced a bumper breeding season, most likely related to an increase in the availability of their preferred prey – small pelagic fish. Previous studies have shown how the quality and quantity of prey affects the body condition of seals, which affects the timing of puberty, implantation of embryos, mortality of foetuses, and therefore reproductive rates of females. Continued monitoring of annual fluctuations in the numbers of new born pups may be crucial in studying the importance of seal birth rate as an indicator of changes in the local food-web, especially if linked to results from future diet analysis of adult seals.