DO Mallard Ducks recognize people?

(Ohio)

Today I was beginning to fill the water bowl and throw some corn on my front porch for my female mallard duck that visits me every day,when she was already on the porch where I usually sit to feed her. However I was not wearing a shirt or hat like I normally do when she visits. She was a little shy today and just sat by the water bowl just staring at me. I think she didn't recognize me because I was not wearing the usual shirt and hat? She would stare at me and twist her head side to side like she was trying to figure out whom I was? Do you think she was confused and didn't recognize me?

Comment

Another reader just posted a note to the forum that watching nature is far more interesting than watching tv. I couldn't agree more.

Scientists have discovered that baby mallards imprint on the call and voice of the mother but not necessary what she looks like. So...maybe mom has imprinted on your hat!