It's likely that it was the food on sale to hand-feed the stingrays that was attracting birds, but it's odd that Ray Reef had been open for seven years before this was deemed necessary.
Ray Reef has recently been entirely enclosed with netting, presumably to keep birds out of the area.
Ray Reef is closed for for maintenance.
And it's seagull feeding time at Ray Reef...
Does Ray Reef really qualify as "all new" three years on?

The rays are still swimming about, but maybe someone thought September isn't a good month for human-ray interaction for some reason?

And Ray Reef at Sea World is closed for some reason.

The sandy bottom allows the rays to partake in natural camouflaging behaviour.
The lagoon is divided by a rock wall. The far end contains the larger rays, whilst the closer end contains smaller ones (Some no larger than a saucer).
The rays live in a well shaded, flat bottomed lagoon.
Much like the SeaWorld parks in the U.S, guests at Ray Reef will have the opportunity to buy fish and feed it to the rays.
It appears Ray Reef missed its original Boxing Day opening target.
The rockwork has been finished, but there is still much to do before the rays can be introduced and the area opened to the public.
The lagoon is now concreted, with mesh in place for some rocky outcrops.
Six and a half years after Thrillseekers closure there will finally be a permanent attraction it its place.
Colourful hoardings are now up around the site. The logo could suggest more of a family focus of this exhibit.
More work underway on Sea World's new Stingray exhibit
Construction begins on Sea World's other new attraction for 2008