<P> A V formation ( sometimes called a skein ) is the symmetric V - shaped flight formation of flights of geese , ducks , and other migratory birds . V formations also improve the fuel efficiency of aircraft and are used on military flight missions . </P>
<P> A V formation ( sometimes called a skein ) is the symmetric V - shaped flight formation of flights of geese , ducks , and other migratory birds . V formations also improve the fuel efficiency of aircraft and are used on military flight missions . </P>
what kind of birds fly in a v formation
what kind of birds fly in a v formation
geese geese other migratory birds
geese geese other migratory birds