petrel / petrol [ˈpɛtrəl]
petrel – n. – any of a large number of pelagic seabirds of the order Procellariiformes including the shearwaters, the storm petrels, and the diving petrels, which have long wings, mainly black (or grey or brown) and white plumage, and a slightly hooked bill with tubular external nostrils
petrol – n. & v. – n. – gasoline; v. – to refuel a vehicle with gasoline