This early summer I came to see a group of Double-crested Cormorants (Phalacrocorax auritus) nesting along the shores of Candlewood Lake.
Double-crested cormorant males bring the material to the female and she builds the nest. They mate at the nest once it is build and defend it by snapping and head-waving with their open bill.
Cormorants may lay up to 7 eggs, although 3 or 4 is the north. Mortality is low. They produce a clutch of 1 to 3 fledglings and both parents take care of feeding the babies.
In this pictures the young are not so young anymore. The nest is also visible.