PITTSBURGH — The three bald eagle nestlings in the Hays neighborhood are maturing and should leave their nest within a month.

Gary Fujak, a wildlife conservation officer with the state Game Commission, said he expects all three of the birds will leave the nest by the end of June.

Fujak said based on the nestlings size, he believes two of the birds are male while the other is female.

Each of the nestlings appears to be healthy and maturing at a good rate.

“There seems to be little aggression between them, which means the parents are still bringing plenty of food to eat,” he said.

Fujak said whenever the birds first leave the nest, the fledglings will actually be larger than their parents.

“That’s nature’s way to help compensate for their flying,” he said, adding it will take a while for them to perfect the skill.

While the nestlings will leave the nest by the end of the month, they’ll likely hang around the area throughout summer.

“They’ll probably stay in the area until September,” Fujak said. “But they won’t need the nest a whole lot.”

During the summer, spectators should be able to see the fledglings in the air and perched on the branches of trees near their nest.

Fujak said the new generation of eagles will probably leave Pittsburgh once they are fully matured, although there is no way of knowing where they will go.

He said migration is good for the species.

“It’ll help spread the gene pool,” he said.

However, the parents will probably stay in the area and should try to produce more offspring next year.

“The parents should stay,” Fujak said. “Provided the weather and food supply stay fine.”

He said the rivers and dams in the area make for good fishing sites for the birds.

The three eagles began hatching in the nest in late March. The last of the eaglets hatched April 2.

Ornithologists with the National Aviary in Pittsburgh at the time were uncertain whether the third eaglet would live, as it had to battle its two older siblings for food.

This group of nestlings marked the second year the parents successfully bred. Last year the nest produced one fledgling.

Bald eagle pairs are active on two additional sites in Allegheny County. More than 200 nests have been reported in Pennsylvania.

To get a look at the nest, go to the Butler Eagle website, www.butlereagle.com, and look for the link “The Pittsburgh Eagle Cam” on the right side of the home page.

The live-stream camera of the nest is provided by Murrysville-based PixController, which is working with the game commission.

To date, the online stream has more than 2.2 million views.