Is this normal duck behavior?
I have zero experience with ducks or understanding their body language. My best references are cats, dogs, and horses.
This is my neighbor's duck. We share the same garden, so his farm animals often come to visit for extra oats and greens. This duck often visits and is relatively social. Before, I was only able to hand-feed it, and it would usually step away when I tried petting it. But this time, it let me pet it, and I noticed a reaction and sounds I've never seen before—it usually stays silent.
Am I stressing it out? Is this a normal reaction of excitement?
It was raised alongside dogs, so it's very social towards them. Sometimes, I even notice it copying some of the dogs' behaviors. I wonder if that could be a factor.
Also, my neighbor says it might be a hybrid between a duck and a goose, though I'm not sure if that's possible.