A combined $7,500 is being offered by authorities for information leading to the conviction of whomever is responsible for the shooting of a bald eagle in Bridgeton City Park, New Jersey, that led to the bird's death.

The Humane Society of the United States and The Humane Society Wildlife Land Trust have announced a reward of up to $5,000, adding to a $2,500 reward previously offered by the United States Fish and Wildlife Service and the New Jersey Division of Fish and Wildlife.

According to officials from the USFWS, the eagle was found seriously injured in Bridgeton City Park on May 20 -- and ultimately had to be euthanized because of its injuries.

It appeared the bird had been shot about a week before it was discovered hurt.

"Killing a bald eagle is a serious crime and we urge anyone with information about this case to come forward," Catherine Hibbard, a spokeswoman for the USFWS, said in a Humane Society news release.

Nicole Paquette, vice president of wildlife protection for the HSUS, said her organization was "appalled at the blatant disregard" for the life of eagle, the national symbol of America, demonstrated by the "senseless shooting ... We are grateful to the U.S. Fish and Wildlife Service and the New Jersey Division of Fish and Wildlife for their diligent efforts to bring the offender to justice."

Shooting an eagle is a violation of the Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act and someone convicted under those laws faces imprisonment of up to one year with maximum respective fines of $100,000 and $15,000, the news release said.

In June, the USFWS announced a $7,500 reward in connection to an earlier shooting of a bald eagle in Montgomery, Alabama. The federal agency provided $2,500 while the HSUS and HSWLTH kicked in the added $5,000 for information leading to a conviction in that case.

Just as with the New Jersey incident, the bald eagle was discovered shot -- in a community between Trace Lane and Sullivans Trace off Butler Mill Road in Alabama -- and had to be euthanized due to the extent of the injuries to its left wing.

In early April, a bald eagle was found killed near Verret, Louisiana, in St. Bernard Parish, according to the USFWS. The eagle was discovered on April 4, 2014, near a fire station on Highway 300 and Bayou Road.

A reward of up to $7,500 was offered by the federal wildlife agency and HSUS for information leading to a conviction in that case.