Another bighorn sheep, a ram, was found dead in the Catalina Mountains Tuesday, the Arizona Game and Fish Department has confirmed.
It's the 12th bighorn to die since 31 sheep were relocated to the Catalinas from the Yuma area in November.
The cause of the ram's death is under investigation, officials reported.
Two mountain lions have been killed for preying on sheep since the reintroduction began.
Meanwhile, state officials also reported that a bighorn lamb also was spotted Tuesday in the Catalinas — the third lamb seen since the relocation.