cegonha-preta vs corvo-marinho-comum

The Black Stork and Great Cormorant can be distinguished primarily by their structure and plumage. The Black Stork has a long, straight bill and long legs, while the Great Cormorant has a shorter, hooked bill and webbed feet. Plumage differences are also notable: the Black Stork is mostly black with a white belly, whereas the Great Cormorant is predominantly dark with a glossy sheen.

Look for the Black Stork's long, straight bill and contrasting black and white plumage. For the Great Cormorant, note the shorter, hooked bill and uniform dark plumage with a glossy sheen. Consider the habitat and social behavior: Black Storks are more solitary and inland, while Great Cormorants are often in flocks and near water bodies.

The Black Stork is generally larger and more slender, with longer legs compared to the stockier Great Cormorant.

Black Stork has a striking contrast with black upperparts and a white belly. Great Cormorant is uniformly dark with a glossy sheen, lacking the stark contrast seen in the Black Stork.

Black Storks are often seen alone or in pairs, while Great Cormorants are more social, frequently observed in flocks.

Black Storks prefer wetlands, rivers, and marshes, often in more inland areas. Great Cormorants are more adaptable, found in coastal regions as well as inland waters.