Roadside Hawk

The Roadside Hawk, Rupornis magnirostris, is a relatively diminutive bird of prey, with a length ranging from 31 to 41 cm and a weight between 250 to 300 grams. Exhibiting sexual dimorphism, females are approximately 20% larger than their male counterparts. This species is characterized by its brown or grey plumage, which can vary significantly among its twelve recognized subspecies. A notable feature is the occasional rufous tint on the wings, particularly visible in flight. The underparts are typically barred brown and white, and the tail displays four or five grey bars. The adult's eyes are a striking whitish or yellow, and the species is aptly named for its relatively large beak.

Identification Tips

In the field, the Roadside Hawk can be identified by its long tail and disproportionately short wings, which are distinctive in flight. The bird often soars but does not exhibit hovering behavior. Its high-pitched, piercing squeak is a reliable auditory cue for identification.

Habitat

The Roadside Hawk is a versatile species, inhabiting a range of ecosystems from Mexico through Central America and into South America, east of the Andes. It is well-adapted to most environments, with the possible exception of dense rainforests, and is also a common urban dweller.

Distribution

This species is widespread, found from the northern Caribbean coast of South America to the northeastern parts of Argentina. It is the most common raptor in many parts of its range and has even been recorded as a vagrant in Texas, United States.

Behaviour

The Roadside Hawk is a conspicuous bird, often seen in urban areas. It is known for its aggressive behavior when nesting, to the extent of attacking humans who venture too close to its nest.

Song & Calls

The call of the Roadside Hawk is a distinctive, very high-pitched squeak that can be heard over considerable distances.

Breeding

The species constructs a bulky stick nest lined with leaves, typically placed near the top of a tree. The female incubates a clutch of one or two eggs for about 37 days, starting after the laying of the first egg.

Diet and Feeding

The diet of the Roadside Hawk primarily consists of insects, squamates, and small mammals, including young common marmosets. It occasionally preys on small birds but is not considered a significant threat to mixed-species feeding flocks in open cerrado habitats.

Conservation status

The Roadside Hawk is currently listed as Least Concern on the IUCN Red List, indicating that it is not at immediate risk of population decline or extinction.