For most outdoor lunchers, the occasional bread crust might head the way of a cheeky gull.
But in Mr Pemberton's case, at each lunchtime for the past 10 years he has shared his peanut butter sandwiches with up to 60 gulls.
At his favourite lunch spot, the breezy top floor of the Golden Centre car park, Mr Pemberton hands out choice portions of sandwich to any gull that happens to be in the CBD for the day.
"It's kind of cool to see them come swooping in from city blocks all around."
He has no favourites, sharing his sandwiches with the red-billed adult gulls, the juveniles with their black eyes, the bossy teenagers, the monopeds, the one with no feet and the breeding black backs and their brood.
Mr Pemberton is a storeman at KMart, in the Meridian mall.
When he heads outside for lunch, the gulls have eyes for no-one else.
Julianne McCallum (22) says she has been feeding the gulls in the same place for two years, but they always desert her for Mr Pemberton.
Yesterday, only 20 birds turned up.
Mr Pemberton said at this time of year there were good pickings all over the city for his flock of "scavengers".
But, it was a different matter in the winter when he was one of the few still offering gulls a free lunch.
Mr Pemberton, who has a degree in zoology, said he enjoyed the way the birds interacted with each other.
