In autumn, the fruits of oak, beech, hazelnut and chestnut trees, as well as blackberries, rowan and arbutus, are the most important source of food in the Cantabrian mountains. The bear enters its hyperphagic period, during which it can consume over 20,000 calories a day!
This is a crucial time for future mothers, who begin their gestation period in mid-November. When beechnuts and acorns are scarce, bears migrate in search of forested areas offering food. It’s an incredible season for photographing and observing the plantigrade in colorful surroundings.
Autumn is also the season when the rut of the isard is in full swing. It’s an opportunity to admire their dizzying pursuits over the steepest ridges.