"The video clip showing the action was a world first, proving that these raptors feed at night as well as by day."
Even though this breeding period is an exciting time of year for birdwatchers, Derby's peregrines attract attention all year round.
"In addition to a lively blog, there are three webcams, two focused on the nest and a third above it which give live coverage of everything that happens.
project team captured footage of one of Nike Lebron Iii
Nick Moyes, of Derby Museum, said: "In December, the Nike Zoom Structure 20 Blue
"In the last week, viewers across the world have seen the pair scraping a depression in the gravel in the nest, displaying to each other and mating as well as eating prey which has included a woodcock and a moorhen."
Last year she came up with the idea of a beer called Peregrine Pale Ale after being woken in the night by the birds calling out.
the peregrines bringing back live prey during the night.
run on Cathedral Green, in Full Street, on April 1, to coincide with the Queen's visit to the cathedral for the Royal Maundy ceremony.
She said: "It's great news that the birds are back and the first egg has been laid.
"I will be getting some of the Peregrine Pale Ale brewed and on sale in the pub next week. I hope plenty of people come to see the falcons while they are here and pop in for a pint while they are in the area."
First peregrine falcon egg laid
Landlady Janina Holmes, who runs the Old Silk Mill, which is overlooked by the birds' nesting spot, said she was pleased to hear that the first egg had been laid.
Last year the birds laid four eggs and raised all four of their young to fledging.
It is hoped that a special watch point with viewing telescopes will be Nike Lebron 11 Away On Feet
Nick Brown, of Derbyshire Wildlife Trust, a partner in the project to bring the peregrines to the Nike Metcon Shoe Laces tower, said: "Thanks to the marvels of technology and the hard work of Nick Moyes at Derby Museum, anyone with internet access can watch these birds throughout the year.
One subsequently flew into a building and another had to be taken into care, having damaged a wing.
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