Mid-winter, there is usually quite some wind. See the graph in the link.
There are challenging moments, though. But storage for weeks, not months, might be robust enough.
ember-energy.org/latest-insights/solar-is-eus-biggest-power-source-for-the-first-time-ever/
It is a common thread that multiple anthropogenic stressors, including climate change, have more-than-additive effects. In other words, many climate change-related problems would be mild if not for other stuff we do.
See, e.g., 10:07 here for savannization of the Amazon: https://www.ted.com/talks/johan_rockstrom_the_tipping_points_of_climate_change_and_where_we_stand?subtitle=en
In the case of flamingoes, it is probably land use change as well.