The large birds are once again "over confident" when it comes to food and the local council is urging people not to feed them.

The warning comes almost a year to the day since Moira Shire called on the public to keep their distance from the animals after they were becoming aggressive around the banks of the lake in 2019.

"If you regularly visit our beautiful waterways, particularly Lake Mulwala, you may have noticed one of the star attractions, pelicans, getting a little over-confident when there is food around," a shire statement said.

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Community general manager Sally Rice said some of the pelicans have again been getting "too close for comfort".

"To help curb our pelicans' new-found anti-social behaviour, we are asking residents to not feed them, both for public safety and the health and safety of the birds themselves," she said.

"We encourage you to take photographs and admire these wonderful creatures from a distance - if possible, stay at least three metres from them at all times."