BIRDWALKERMONDAY: COMMON BUZZARD (Buteo buteo)

Showing posts with label COMMON BUZZARD (Buteo buteo). Show all posts

Sunday, 13 October 2024

13-10-2024 KILLMEADEN, COUNTY WATERFORD - COMMON BUZZARD (Buteo buteo),

The Common buzzard (Buteo buteo) is a medium-to-large bird of prey which has a large range. It is an opportunistic predator that can take a wide variety of prey, but it feeds mostly on small mammals. The Common buzzard appears to be the most common diurnal raptor in Europe, as estimates of its total global population run well into the million.

The Common buzzard is a medium to a large-sized raptor that is highly variable in plumage. Most buzzards are distinctly round-headed with a somewhat slender bill, relatively long wings that either reach or fall slightly short of the tail tip when perched, a fairly short tail, and somewhat short and mainly bare tarsi. In Europe, most typical buzzards are dark brown above and on the upperside of the head and mantle, but can become paler and warmer brown with worn plumage. Usually, the tail will be narrowly barred grey-brown and dark brown with a pale tip and a broad dark subterminal band but the tail in palest birds can show a varying amount of white and reduced subterminal band or even appear almost all white. In European buzzards, the underside coloring can be variable but most typically show a brown-streaked white throat with a somewhat darker chest. A pale U across the breast is often present; followed by a pale line running down the belly which separates the dark areas on the breast side and flanks. These pale areas tend to have highly variable markings that tend to form irregular bars. Juvenile buzzards are quite similar to adults in the nominate race, being best told apart by having a paler eye, a narrower subterminal band on the tail, and underside markings that appear as streaks rather than bars.

Wednesday, 11 October 2023

11-10-2023 SOLLANA, VALENCIA - COMMON BUZZARD (Buteo buteo)

The common buzzard (Buteo buteo) is a medium-to-large bird of prey which has a large range. It is a member of the genus Buteo in the family Accipitridae. The species lives in most of Europe and extends its breeding range across much of the Palearctic as far as northwestern China (Tian Shan), far western Siberia and northwestern Mongolia. Over much of its range, it is a year-round resident. However, buzzards from the colder parts of the Northern Hemisphere as well as those that breed in the eastern part of their range typically migrate south for the northern winter, many journeying as far as South Africa.

The common buzzard is an opportunistic predator that can take a wide variety of prey, but it feeds mostly on small mammals, especially rodents such as voles. It typically hunts from a perch. Like most accipitrid birds of prey, it builds a nest, typically in trees in this species, and is a devoted parent to a relatively small brood of young. The common buzzard appears to be the most common diurnal raptor in Europe, as estimates of its total global population run well into the millions.

The common buzzard is a typical Buteo in much of its behaviour. It is most often seen either soaring at varying heights or perched prominently on tree tops, bare branches, telegraph poles, fence posts, rocks or ledges, or alternately well inside tree canopies. Buzzards will also stand and forage on the ground. In resident populations, it may spend more than half of its day inactively perched. Furthermore, it has been described a "sluggish and not very bold" bird of prey. It is a gifted soarer once aloft and can do so for extended periods but can appear laborious and heavy in level flight, more so nominate buzzards than steppe buzzards. Particularly in migration, as was recorded in the case of steppe buzzards' movement over Israel, buzzards readily adjust their direction, tail and wing placement and flying height to adjust for the surrounding environment and wind conditions. In Israel, migrant buzzards rarely soar all that high (maximum 1,000–2,000 m (3,300–6,600 ft) above ground) due to the lack of mountain ridges that in other areas typically produce flyways; however tail-winds are significant and allow birds to cover a mean of 9.8 metres per second (22 miles per hour).