The nest is monitored by CSU staff via web cameras set up in the nest.

In an accompanying blog ornithology expert Dr Cilla Kinross said the two chicks were now a week old.

"It would seem that we will have only two chicks this year, as with the last two years," she said.

"That makes the job for (the parent birds) Diamond and Xavier a bit easier with a higher rate of success of [survival].

"I think that's less pressure for the parents, especially in the drought.

"One sole chick is not so good as it doesn't have the warmth of the other little body when the falcon (the female) goes hunting."

She said a third egg had not hatched. "The longer it remains 'whole' the less likely it will hatch."

Dr Kinross said they had not yet named the new additions.

"We need to consider names for our twosome. We decided some time ago to use planet names," she said.

Dr Kinross said Xavier, the male, had been busy hunting for food for the family.

"Prey has been a mixture of pigeons (including ferals and natives), the usual starling and rosellas and the odd oddity such as rufous songlark (we think)," she said.

"Many prey are hard to identify as they are generally well prepped by Xavier prior to [being given] to Diamond."

She said the mother bird, Diamond, had also been seen leaving the nest to hunt for prey herself with Xavier making "tentative moves" to brood the chicks.

In 2018 two chicks, named Gamma and Budhin, were born.

Their progress was monitored since birth until their eventual leaving of the nest.

The Falconcam Project has been operating since 2007 when the pair of peregrine falcons were spotted around CSU.

A nesting box was built on the tower and the birds quickly took to it to create a nest.

The web camera footage can be seen by the public through the internet.

VIDEO: Web camera footage of the bird's nest

It has attracted interest throughout the world, particularly in Europe and the United States.

A counter on the web page showed there has been 3749 views of the site in the past 30 days.

That is part of the 121,575 views it has received over the past four years.