Translate the following English sentence to French:
"When I visited Brittany, I appreciated for myself that there was a need for a unit, or specialists, with responsibility for cleaning and washing birds affected by oil slicks."
En visitant la Bretagne, j' ai personnellement constaté qu' il aurait fallu une unité, c' est-à-dire des spécialistes, chargée de nettoyer et laver les oiseaux affectés par la nappe de pétrole.