American Robin - Worm Pulling

I am fascinated with watching the behavior of birds.  I confess to standing for hours trying to capture them doing what comes naturally.  Finally got a shot (not a great one) of this American Robin pulling the worms from the ground.  As I watched them it looked like they were cocking their head to  one side to "hear" the worms - when actually - they were scrutinizing the ground with one eye to SEE the worms.  

"They have what is called monocular vision, which means their eyes are on the sides of the head and each eye can be used independently" - 
I never knew that!!
More from this great article is found - HERE 

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