About 45 investigators including 25 police officers, wildlife crime officers and specialists from the RSPB, SSPCA and Scottish Natural Heritage were involved in the operation at the Moy Estate near Inverness, which is a haven for grouse shooting.
Police have raided a Highland country estate near Inverness after birds of prey were found poisoned in the area.
About 45 investigators including 25 police officers, wildlife crime officers and specialists from the RSPB, SSPCA and Scottish Natural Heritage were involved in the operation at the Moy Estate near Inverness, which is a haven for grouse shooting.