Mother Carey's chicken

Noun

 * 1)  The storm petrel.
 * 2) * 1773,, The Journals, Second Voyage, 27 December:
 * A few blue petrels, black sheer-waters and Mather Caries chickens are all the birds we see.
 * 1) * 2004,, In Tasmania, Harvill Press, p. 36:
 * Kemp watched sperm whales and green turtles and hundreds of gulls and petrels – known as “Mother Carey's chickens” – that flew around the ship with piercing screams.