Nests are usually built on the ground, but are sometimes built in trees. Double-crested cormorants breed once yearly. Double-crested cormorants breed between April and August, with peak activity occurring in May through July.

What time of year do cormorants breed?

Breeding behaviours

Breeding can occur at any time depending on food supply. Both sexes build the nest, which is a large structure of sticks placed in a low tree or on the ground. Both parents also incubate the eggs and care for the young. Breeding Season: August to January.

Where do cormorants lay their eggs?

Nesting sites are variable, reflecting at least in part the availability of food. Nests can be on rocky cliff faces, in trees, or on the ground. On average, cormorants lay three to five eggs.