Zebra Ducks foraging for food by vortexing

30 Jun 2014   in Feeding strategy, Feeding-invertebrates, Videography 2 Comments »
Contributed by Teo Lee Wei & K

“The photo above shows a few Zebra Ducks or pink eared ducks (Malachorhynchus membranaceus) with a pied stilt (Himantopus himantopus). The pink ear is clearly visible in a few of the ducks.

“The video above shows a pair of zebra ducks concentrating plankton by creating a water vortex. The typical head to tail position can be seen here.

“The square tip of the spatula shaped bill is also clearly visible. The ducks take in plankton-rich water through the square tip of the bill and force the water out through grooves on the sides of the bills. Microorganisms in the water are strained out efficiently in this manner.

“An Australian Shoveler (Anas rhychotis) duck took the opportunity to help itself to the rich food source as it swam past.

“Another clip above shows five pairs of ducks vortexing for food.”

Teo Lee Wei & K
24th May 2014

Related posts:
  • Black-winged Stilt at Seletar, Singapore “Here’s an uncommon winter visitor hanging out at a monsoon...
  • Common Redshank foraging Lena Chow‘s earlier post on the foraging behaviour of the...
  • Whimbrel foraging on mudflat Lena Chow‘s video clip shows a Whimbrel (Numenius phaeopus) foraging...
  • Lesser Sand-plover foraging Lesser Sand-plover (Charadrius mongolus), previously known as Mongolian Plover, is...
  • A flock of Lesser Whistling-ducks On 9th March 2010, Dato’ Dr Amar-Singh HSS came across...
  • Whistling-Ducks and Hybrid Ducklings “Two species of Whistling-ducks can be found at the Singapore...
  • Tags:

    2 Responses to "Zebra Ducks foraging for food by vortexing"

    1. Liao Weijie says:

      Where is this place?

    Leave a Reply