Crisps and even chocolate are some of the foods being given to the deer in Dublin's Phoenix Park.
Rangers are urging you not to feed or take selfies with the animals while out on their Christmas walks.
More than 500 wild deer roam the Phoenix Park.
People in the park are being told to keep 50 metres away.
Instead of feeding and taking pictures with the deer - post boxes for children to drop off their letters to Rudolf have been installed.
Peter Thiel Event Will Not Go Ahead In Wicklow Hotel
Powerscourt Estate, where the five-star Powerscourt Hotel and Spa is located, announced the Dialog event has been cancelled - with relief.
Wicklow Receives €10.72 Million to Repair Roads Damaged by Storm Chandra
Wicklow Apprentice Wins ESB HGV Mechanic Apprentice of the Year
A wheely good result for Daniel Diamond from Glenealy!
Wicklow Takes Two Spots In Top Five As Ireland's Best Music Festivals Are Revealed
Beyond the Pale and Kaleidoscope wow the crowds with festival fever flair finishing top five in nationwide research
Short-Term Extension Of Fuel Excise Cuts For Wicklow Families And Businesses
Tanaiste says extending measures is to offset 'cliff-edge' fall for people and businesses while monitoring inflation
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High: 21°C | Low: 13°C
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High: 23°C | Low: 13°C