The ospreys have left a broadcast tower at a Havre de Grace radio station, allowing 104.7 FM to expand its signal.
The station's plans to upgrade its antenna last month were postponed when the federally-protected ospreys were found to have built a nest on the tower.
Station president Jeff Davis said the Maryland Natural Resources Police informed him July 7 that work on the antenna can proceed.
He said the Federal Communications Commission has also approved 104.7 FM to go full power, allowing the station to build the antenna and increase its power.
Work on the antenna was set to begin Thursday, Davis said Wednesday. He expected the full signal to start operating within 30 to 60 days.
"We are really excited about it and we are excited about the fact that we will finally have a second FM radio station in Harford County," he said.
The station, 104.7 "The Point" FM, also broadcasting as WHGM 1330 AM, has hoped to expand the FM signal to all of Harford County. Since Jeff Davis took over WHGM in October 2014 and launched the FM station, it has only reached roughly from North East to Aberdeen, Davis said.
WHGM 1330 can be heard throughout the whole region.
"First and foremost, at the end of the day, [the osprey] is a protected species and we wanted to make sure, from a conservation standpoint, that we are doing everything by the book," Davis said about the bird.
Ospreys, which migrate to the area in March and leave by the start of fall, are known for nesting homes on tall, man-made structures.