Ducks React Same way to Reconnective Healing

So I was sitting on a bench by my house meditating.  There were ducks nearby.  When I opened my eyes, I saw a pair of ducks about 10 feet away from me.  I put my attention on them and was just like hi there Mr. and Mrs. Duck.  Then they both started shaking their heads the same as the chickens do when I do Reconnective Healing on them.  They continued shaking for 1 to 2 seconds and each did it about six or seven times.  Then I thought I should video it but they flew off when I stood up.  Will try another day.   Very interesting.