LINCOLN, Neb. (AP) — A Macy man charged with killing a bald eagle is arguing in federal court that prosecutors have greatly overvalued the bird at $10,000.

Lamar Bertucci says the eagle he shot in February is worth only about $2,000.

The bird’s worth could make a difference in Bertucci’s sentence. Assistant U.S. Attorney Jan Sharp says that in federal cases, the costlier the crime, the longer the time.

Bertucci pleaded guilty this year to shooting a bald eagle and a rough-legged hawk near Macy, crimes that carry up to 30 months in prison and $350,000 in fines.

Bertucci argues in his latest cast that when he was convicted in 2009 of possessing eagle parts, the bird was valued at $2,000.