Ducks
To dream of a duck represents you or someone else in waking life that is aware of everything happening around them. Positively, ducks may reflect preparedness and savviness. Being shrewdly informed or having inside information. Feeling that is easy to adapt or get away with something.
Negatively, a duck may represent gossip or talking about other people behind their backs. An annoying "twerp" in your life that won't go away or that you feel always gets away with something negative. It may also be a sign that you don't like being as informed as you are.
Example: A woman dreamed of seeing ducks in her backyard under a tree. In waking she was deeply concerned about being ready for the end of the world. The ducks in the backyard reflected her feelings about herself being more informed than others about global events and the potential for apocalyptic events while also feeling that she couldn't do much about it.
Example 2: A young girl dreamed of a sad duck with bad luck. In waking life she her had gotten remarried and was having a second baby which made her feel like she didn't matter anymore. The sad duck may have reflected her feelings about having trouble adapting to the new family situation after initially feeling that it would be easy.