Mating season.. nesting and breeding. In California, eagle mating season isn't called a specific "name," but rather the Breeding Season, which for Bald Eagles runs roughly January through July/August, starting with courtship in late fall (Oct-Dec) with nest building and egg-laying in winter/spring. Golden Eagles have a similar timeframe, breeding from late January to August, nesting on cliffs or large trees, according to the California Department of Fish and Wildlife.. 🦅 Disclaimer: Original Li