A former New Mexico resident pleaded guilty Friday to offering to sell 33 wing feathers from a golden eagle he said he found dead near Gallup in February 1987.

In exchange for Paul Zilth's guilty plea to the misdemeanor charge filed by the U.S. Attorney for New Mexico, two other counts of offering to sell parts of the migratory birds will be dismissed, said prosecutors.

Zilth, a Navajo Indian who told U.S. District Judge David Winder he now lives in St. George, Utah, said he had not known golden eagles were protected and that it was illegal to sell parts of them.

Winder scheduled Zilth's sentencing for July 15. He faces a maximum penalty of one year in prison and a $100,000 fine.