Possums, but it is a rare treat for them to see one.
If a dog walks by on a leash, they bark, but if one walks by without a leash, they totally go nuts. For some reason, they know it's wrong!
My lazy dogs have also mastered the art of letting out some half-azzed barks while barely lifting their heads up from the chair or bed.

), flashlights, and occassionally at a neighbor's dog, but she mostly yawn/whines (is there a term for that?) She will whine if she wants to sit in your lap, wants to go out, wants food, at shadows on the wall, or pretty much anything. Odd dog 