This video is called Brunelleschi, Dome of the Cathedral of Florence, 1420-36.
From ANSA news agency in Italy:
Falcons nest on Florence Duomo
Webcam to catch upcoming hatching
FLORENCE – A pair of falcons have chosen an unusual home to nest and bring up their young – the top of Florence cathedral.
A webcam has been set up to follow the peregrine falcons, who have been named after two heroes of Florentine history – the great painter Giotto and Monna Tessa, Italy’s first nurse and the founder of a famous religious order.
Bird lovers and others can follow the birds’ movements in the run-up to the appearance of the first additions to their family, expected towards the middle of this month.
The bird-watching world has been waiting with bated breath since Monna Tessa laid four eggs on March 8.
Thanks to the webcam – a tangerine-sized ball painted the same brick-red colour as the Duomo’s tiles – they’ll be able to see the fledglings’ first steps towards becoming, like their parents, one of the fastest creatures on the planet.
A pair of hawks were spotted a few years ago on another great city landmark, the imposing tower of Palazzo Vecchio.
Experts say it could have been the first visit by a younger Giotto and Monna Tessa, already showing their taste for fine architecture.
Peregrine falcon nest with webcam in The Netherlands: here.
Barcelona peregrines: here.