pintail

1. Low pathogenic avian influenza commonly occurs in wild birds and can be found in a number of duck populations including the Northern pintail.
   低致病禽流感病毒通常出现于野禽，并且可以在很多鸭类包括北长尾鸭中找到。
2. Duck populations, including Northern pintail ducks, are commonly hunted.
   鸭类，包括北长尾鸭，被大量猎杀。

noun

1. long-necked river duck of the Old and New Worlds having elongated central tail feathers

   Synonym:    pin-tailed duckAnas acuta