When I come into the bathroom and get down next to the tub to say hello to my goofy friends, the 2 older ducklings (4 weeks) will come up to me and if I put my hand in, they start clattering their bills against my skin and push their bills into my palms. If I get my face too close, they try to do the same to my nose and mouth. With a lose fist, they will stick their bills in between my thumb and palm and bury their heads inside my fist. Dumb question....what the heck does this mean? Are they looking for food? I never give them treats in my hands, I always put them in their water. Just being affectionate? Trying to tell me to buzz off? Want to be picked up or taken out of the tub? I'm trying to find info on duck behaviour and there seems to be very little available. I'm so curious about these little creatures who have invaded my home and heart and what they are trying to tell me. The two younger ones (3 weeks) also are starting to come over, and they will copy the older ones, but as soon as I move my hand, they run away. The older ones persist. Any books on the subject or web sites I could check out? Thanks!