Double-crested Cormorant (Phalacrocorax auritus) Science Article 14
The Double-crested Cormorant (Phalacrocorax auritus) is a common inhabitant of most water bodies in Florida (Hatch and Weseloh 1999). Cormorants are primarily piscivorous(Nettleship and Duffy 1995). While most studies have examined the impact of cormorant predation on fish, other prey items noted include crayfish and salamanders (Derby and Lovvorn 1997), crustaceans (Cairns 1998), and insects (O’Meara et al. 1982). I have found no mention of cormorants consuming birds.
JOHN H. MICHaeL JR, Florida Field Naturalist 30(4):134, 2002