Pied Cormorant

Fascinating facts about the Pied Cormorant

• Dr. Paul Sagar from the University of Otago found that Pied Cormorants can dive as deep as 5 metres in search of food, with some birds making up to 30 dives per hour, spending around 25 seconds underwater each time. This means they spend roughly 12.5 minutes per hour foraging underwater. Their ability to dive and forage efficiently reveals how adaptable they are to their aquatic environment.
• In a study published in 2017, researchers tracked Pied Cormorants flying at speeds of up to 50 km/h when foraging, but reaching speeds of 70 km/h when commuting to their nesting sites, showcasing their impressive agility and speed. This highlights how their flying abilities are crucial for their survival and daily activities.
• Pied Cormorants can ingest up to 1 kg of fish per day, which is approximately 20% of their body weight, making them one of the most efficient fish-eating birds in their ecosystem. Their feeding habits have a significant impact on the aquatic food chain, demonstrating the critical role they play in maintaining the balance of their environment.
• A single Pied Cormorant nesting site can contain up to 1,000 breeding pairs, with each pair producing 2-4 chicks per year. This means that a large nesting site can produce around 2,000-4,000 chicks annually, showcasing their impressive reproductive capacity and highlighting the importance of conservation efforts to protect these sites.
• According to a study published in 2005, Pied Cormorants have been observed using tools to help them hunt and gather food, such as using rocks to open shells and eat the contents. This behaviour, observed in only a few bird species, showcases their intelligence and resourcefulness, and provides valuable insights into their problem-solving abilities and adaptability.

At a glance

About the Pied Cormorant

The Pied Cormorant (Phalacrocorax varius) is a striking waterbird, easily recognized by its distinctive black-and-white plumage and striking yellow-orange facial skin that becomes particularly vibrant during the breeding season. These medium-sized cormorants are often seen perched on rocky outcrops or coastal trees, their long necks and hooked bills poised as they survey the water for prey. Found primarily along Australia’s coastlines, they thrive in a variety of aquatic habitats, from estuaries to freshwater lakes, demonstrating an impressive adaptability to different environments. Their impressive diving skills allow them to pursue fish underwater, using their webbed feet to propel themselves with remarkable agility, often diving to depths of up to 15 meters to catch their meals. The Pied Cormorant's social behavior is equally fascinating; they often congregate in large colonies, engaging in cooperative hunting and roosting, which enhances their chances of survival in the wild. Their ability to dry their wings after diving is a surprising trait that sets them apart from many other waterfowl, as they frequently spread their wings wide to absorb sunlight and remove moisture after a dive. As skilled hunters, these birds primarily feed on fish, crustaceans, and other aquatic organisms, showcasing their versatility in diet. Their foraging strategy is often characterized by a unique team approach, where groups of cormorants work together to drive fish into shallow waters, making it easier for them to catch their next meal. This cooperative behavior not only highlights their intelligence but also their strong social bonds. The Pied Cormorant's presence is a testament to the health of its aquatic habitat, making it a key indicator species for ecosystem health. As they glide through their coastal realm, they embody the intricate balance of life within their environment, reminding us of the delicate interplay between species and their habitats.

Discover more wildlife