The confusing, overlapping world of the true hawk

Nature · Published 30 September 2026 Swipe more like this →

In short: Is it a hawk, a buzzard, or a falcon? The answer depends entirely on where you stand. From ancient Greek lists to modern taxonomy, the names we use for these predators often reflect tradition and habit rather than biological reality.

The nomenclature of hawks is a thicket of historical tradition and taxonomic debate. While the term 'hawk' is often applied broadly to various birds in the family Accipitridae—including kites, harpenders, and harriers—it is most precisely used for the genus Accipiter, known as 'true hawks.' These birds, such as the goshawk and sparrowhawk, are typically woodland specialists with short, rounded wings and long tails designed for high maneuverability through dense foliage.

In contrast, the 'Buteo' group presents a linguistic divide. In the United States, these broad-winged, soaring raptors are commonly called hawks, but in many other parts of the world, they are referred to as buzzards. This group, which includes the common red-tailed hawk, tends to hunt by descending or pouncing rather than the rapid, horizontal pursuit seen in accipiters. The confusion extends even further to the family Falconidae; for instance, the peregrine falcon is colloquially called a 'duck hawk,' and the osprey is frequently known as a 'fish hawk.'

Even the ancients grappled with this complexity. Aristotle recorded eleven distinct types of hawks, while Pliny identified sixteen, though he only provided specific names for a few, such as the kestrel. Modern science continues to refine these boundaries. For example, while the Buteoninae subfamily traditionally included eagles, researchers Lerner and Mindell proposed in 2005 a reclassification that separates eagles into their own subfamilies, leaving only the hawk-buzzards within the group. Beyond their names, these birds possess remarkable cognitive depth; in 2005, ornithologist Louis Lefebvre introduced a method to measure avian intelligence through feeding innovation, placing hawks among the most intelligent birds.

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