The sooty shearwater is a seabird that is known for its long migrations across the globe. Its name is spelled /ˈsuːti ˈʃɛrˌwɔtər/ in IPA phonetic transcription. The first part, "sooty," is pronounced with a long "u" sound followed by a "t" and "y." The second part, "shearwater," is pronounced with a "sh" sound, followed by an "e" sound, and then a rolled "r." The final syllable, "water," is pronounced with a short "a" sound and a "t" sound at the end.
The sooty shearwater, scientifically known as Ardenna griseus, is a species of seabird belonging to the Procellariidae family. It is a medium-sized bird, measuring about 43-51 centimeters in length, with a wingspan of 107-123 centimeters. The sooty shearwater has a distinctive dark brown or sooty plumage, which gives it its name. It has a slender body, long wings, and a slightly hooked bill.
This species is known for its impressive long-distance migratory behavior, undertaking one of the longest migrations of any bird in the world. Breeding in the southern parts of the world, such as New Zealand and South America, during the southern hemisphere summer, the sooty shearwater embarks on a remarkable journey, traveling up to 40,000 kilometers to the northern Pacific Ocean during the northern hemisphere summer.
The sooty shearwater is a highly pelagic bird, spending most of its life on the open ocean. It feeds on a diverse diet, including fish, squid, and crustaceans, which it obtains by diving and surface seizing. Aptly adapted for long flights, it has an efficient flying technique and can glide for extended periods without flapping its wings.
Due to its remarkable long-distance migratory behavior, the sooty shearwater has garnered attention from scientists and birdwatchers alike. Often forming large flocks that can number in the hundreds of thousands, this species is a fascinating example of the adaptability and resilience of seabirds in the world's oceans.
The etymology of the word "sooty shearwater" can be broken down as follows:
1. Sooty: The adjective "sooty" comes from the Middle English word "soty", which meant "covered or stained with soot". This term is ultimately derived from the Old English word "sotig", meaning "full of soot" or "dirty".
2. Shearwater: The noun "shearwater" refers to a type of seabird that is known for its gliding flight close to the water's surface. The word "shearwater" is a combination of two words:
a. Shear: The verb "shear" means "to cut or remove something with a sharp tool". It is derived from the Old English word "scearn", which means "a cutting instrument" or "to cut".
b.