Hawk
Hawks are diurnal birds of prey primarily within the family Accipitridae, characterized by broad wings, hooked beaks, strong talons, and exceptional vision enabling them to hunt from perches or in flight.[1] They are distinguished from falcons by their method of killing prey through squeezing with talons rather than biting the neck, and from eagles by their generally smaller size and more agile flight suited to woodland or open country pursuits.[2]
Found on every continent except Antarctica, hawks occupy diverse habitats from forests to grasslands, with species like the red-tailed hawk (Buteo jamaicensis) being among the most common and adaptable in North America, often perching conspicuously to scan for rodents and other small vertebrates.[3] As apex or mesopredators, they play a key role in maintaining ecological balance by controlling populations of pests such as mice and sparrows, demonstrating remarkable adaptability that has allowed many species to thrive near human settlements despite habitat pressures.[4] Notable genera include Accipiter (goshawks and sparrowhawks, agile forest hunters) and Buteo (soaring buzzard-like hawks), with over 200 species exhibiting varied plumage from cryptic browns to striking rufous markings for camouflage and display.[5]
Definition and Taxonomy
Etymology and Common Usage
The English word "hawk" derives from Old English hafoc, denoting a bird of prey employed in falconry or hunting. This term traces to Proto-Germanic *habukaz, cognate with Old Norse haukr, Old High German habuh, and Dutch hauk, reflecting a shared Germanic linguistic heritage for raptorial birds. The Proto-Indo-European root *kap- or similar, implying "to grasp" or "seize," aligns with the bird's predatory talons and hunting method of capturing prey mid-flight or from a perch.[6][7] In ornithological contexts, "hawk" typically refers to diurnal birds of prey in the family Accipitridae, encompassing genera like Accipiter (e.g., goshawks and sparrowhawks, known for woodland ambushes) and Buteo (e.g., buzzards, often termed hawks in the Americas for their soaring hunts). The designation excludes larger eagles, scavenging vultures, and falcons of the separate Falconidae family, which employ distinct aerial techniques like stooping dives. This usage emphasizes medium-sized raptors adapted for active predation on vertebrates and insects, though vernacular application can extend loosely to other small-to-medium accipitrids or even non-accipitrids in regional dialects.[2][8] Historically tied to falconry since medieval Europe, where "hawk" specified certain trainable species distinct from "falcons," the term's modern scope reflects taxonomic refinements post-18th-century Linnaean classification, prioritizing ecological roles over strict phylogeny. In North America, common names like "red-tailed hawk" for Buteo jamaicensis—a widespread soarer preying on rodents—exemplify prevalent usage, with over 20 species so designated by authorities like the Cornell Lab of Ornithology.[8]Taxonomic Classification
Hawks constitute a vernacular grouping of diurnal birds of prey primarily within the family Accipitridae, which encompasses over 250 species distributed across approximately 70 genera worldwide.[9] This family is classified under the order Accipitriformes, characterized by hooked beaks, strong talons, and keen vision adapted for predation.[10] The higher taxonomic ranks for Accipitridae members are as follows:- Kingdom: Animalia
- Phylum: Chordata
- Class: Aves
- Order: Accipitriformes
- Family: Accipitridae[1]