<prompt> Bhala okuqhubekayo kwalesi sigaba - Kuwo wonke ama-1980 nawo-1990, imizamo yenhlangano yokuphendula ngezilwane zasendle yayidlulela ngalé kweCalifornia. Izisebenzi ze-International Bird Rescue zachitha izinyanga eziyisithupha ziphatha izikhungo ezintathu zezinyoni nezinhlelo ezimbili zokufuna nokuqoqa izinyoni enhlekeleleni ye-Exxon Valdez yango-1989  <response>: , lapho kwachitheka khona amalitha ayizigidi ezingu-11 kawoyela ongahluziwe ePrince William Sound yase-Alaska, kwabulawa izinyoni zasolwandle eziphakathi kuka-100 000 no-250.000. I-Exxon Valdez yaba ukuchitheka okukhulu kokuqala lapho ukuzinza nokuthutha kwasensimini kwasetshenziswa kabanzi ekunakekelweni kwezilwane zasendle ezinamafutha. 