 Common Ravens have nested at Barre Falls Dam for several years. They are early nesters; one of the pair, presumably the female, was seen only briefly on April 1st. It is likely she was on the nest incubating while her mate was standing watch. |  When the sentinel bird, probably the male, is approached, he elicits a somewhat musical call which seems to be a "reassurance" contact call to the nearby--although unseen --female.  |