In this picture, the crack is on the left side of the upper egg (Photo courtesy of the American Eagle Foundation)

We can expect another eaglet birth at the National Arboretum very soon, experts say.

After spotting a small crack on an eagle egg this morning, American Eagle Foundation officials announced that new offspring to Mr. President and The First Lady could hatch in the next 12 to 48 hours.

The egg is one of two perched in a nest on top of a Tulip Poplar tree at the Northwest site.

Bald Eagles Mr. President and The First Lady have been incubating the eggs for the past month, and folks have been watching along via an upgraded DC Eagle Cam that now includes sound.

“This is a very special time in the nest,” said AEF founder and president Al Cecere, in a release. “To witness the up‑close process of an eaglet breaking through its shell is wonderfully heartwarming. We hope both eaglets hatch this week and show signs of good health.”

The eggs were laid on February 19 and 23. It takes about 35 days for an eagle to incubate, according to AEF.

The soon-to-be eaglets are currently being dubbed “DC4” and “DC5” as they’re preceded by siblings Freedom and Liberty, which were born last year, and “DC1,” which hatched in 2015.

Meanwhile in Southeast, wildlife experts said that one of two eagle eggs at a D.C. Police academy is “nonviable” after incubating for more than 43 days (the other eaglet poked through its shell on March 15).

Upon successful hatching at the Arboretum, the public will have a chance to suggest permanent names for DC4 and DC5 in several weeks.