In the time period we've lived on the Spain/Portugal border - a little over 20 years - storks have gone from migratory to resident which we're told is something to do with changes in agricultural practices meaning availability of year-round food supply. Between our little town, Olivenza, and the provincial capital of Badajoz is a distance of 25km and there is at least one stork's nest on every pylon, and up to four in some cases. But the champion is just outside Lisbon where I counted 13 nests on one pylon! BTW I spotted that on the way back from the airport after a business trip to the US. It was the day that lockdown began - and I'd cut short my trip to get home. Two or three hours after I crossed back into Spain, they shut the border.
Storks are wonderful to watch soaring in groups, which we saw more often when they assembled to migrate together southwards down across the Straits into Morrocco. But they aren't half clumsy taking to flight from the nest. They tumble out and flail for a bit as if they can't quite remember how to fly before getting it all together and off they go. They mate for life and return to the same nest year after year. The nests can weigh up to half a tonne and remind us of the hassidic shtreimel headwear. Unlike a hat, they never get blown off in a storm.