: Breeds. to late May-early Sep. Breeds late Apr-late Jul on a number of small rocky islands and ledges in the outer parts of Frenchman Bay and Blue Hill Bay. A colony on Egg Rock just southeast of Bar Harbor is visible from most Bar Harbor whale watch and puffin cruises.
: to migrant mid Apr-mid May (est.) with a late Apr peak and from late Mar, and mid Sept-mid Nov with a mid/late Oct peak and to mid Dec. Schoodic Point is the best observation point with maximum daily mid-late Oct totals in the low thousands.
: No confirmed records late Dec-mid Mar.
Miscellany: The ‘crests' on Double-crested Cormorant, narrow lines of black (southeastern US) or mostly white (northern and western US) feathers above and behind adult eyes for a short time in spring, are barely detectable.
You can learn more about Double-crested Cormorants and see images here.
Last Reviewed: June 3rd, 2026