Correct

扑棱

/ pūlēng /
Strokes

Definition

(onom.) fluttering or flapping of wings

Example

As an Onomatope

flap; flutter [sound of flapping of wings]

1
lēng
扑棱
shēng
  
,
shùcóng
树丛
zhōng
fēi
qún
niǎo
  

There was a flutter of wings and a flock of birds flew away from the trees.