In this episode—which is Number 99—we dive into the fascinating world of cormorants and shags, members of the avian family Phalacrocoracidae. These sleek, hook-billed birds are known for their distinctive silhouettes, often seen drying their wings on seaside cliffs or wetland trees. Cormorants and shags have a long history of varied human interactions, from being vilified and hunted to being revered and even trained to catch fish.

These birds are exceptional divers, utilizing their streamlined bodies and webbed feet to hunt underwater. Their feathers are less waterproof than those of other aquatic birds, which aids in diving but necessitates their iconic wing-drying behavior. Cormorants can be found across the world, thriving in diverse habitats from coastal cliffs to freshwater lakes.

They face significant conservation challenges. Human persecution and disturbances, habitat destruction, and climate change threaten several species, some of which are critically endangered.

Links of Interest

• Brandt's Cormorants [VIDEO]

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This episode—which is Number 98—delves into the fascinating world of the avian brain. Despite the long-standing misconception that "bird brain" equates to being unintelligent, recent scientific research reveals that birds possess remarkably sophisticated brains, rivaling the intelligence of primates and even humans in some respects. By tracing the evolutionary paths of both mammals and birds from a common ancestor, I explain how birds have developed unique brain structures that enable complex thought processes, decision-making, and problem-solving.

We'll explore the anatomical intricacies of a bird's brain, breaking down its basic architecture into the forebrain, midbrain, and hindbrain. I highlight the critical role of structures like the hyperpallium and the dorsal ventricular ridge in enabling advanced cognitive abilities. Additionally, the discussion touches on brain plasticity, neuron density, and the specific regions involved in vocalization and memory.

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This is Episode 97. It’s all about bluebirds: the three North American species in the genus Sialia: The Eastern Bluebird, Western Bluebird, and Mountain Bluebird.

For centuries, these beloved birds have been celebrated in paintings, poems, songs, and Disney cartoons.

The Eastern Bluebird is the state bird of Missouri and New York, while the Mountain Bluebird is the state bird of Idaho and Nevada.

And, apparently, the Mountain Bluebird was the inspiration for the original Twitter logo.

But bluebirds aren’t just cultural icons. They’ve also become valuable study subjects for scientists in the fields of ornithology and general biology. Research on these little birds has led to insights about the way the natural world works—from evolution, to ecology, behavior, diseases, and genetics.

Links of Interest

• North American Bluebird Society

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