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The young of the species are sometimes referred to as ring-tail harriers. They are distinctive with long wings, a long narrow tail, the slow and low flight over grasslands and skull peculiarities. The harriers are thought to have diversified with the expansion of grasslands and the emergence of C 4 grasses about 6 to 8 million years ago during ...
Unlike many raptors, hen or northern harriers have historically been favorably regarded by farmers because they eat mice that damage crops and predators of quail eggs. Harriers are sometimes called "good hawks" because they pose no threat to poultry as some hawks do. Heavy pesticide use in the 1970s and 1980s caused a decline in harrier ...
The pallid harrier (Circus macrourus) is a migratory bird of prey of the harrier subfamily. The scientific name is derived from the Ancient Greek. Circus is from kirkos (circle), referring to a bird of prey named for its circling flight ('probably the hen harrier), and macrourus is "long-tailed", from makros (long) and -ouros (-tailed).
Harriers are diurnal birds of prey of the Circinae subfamily of Accipitridae. Subcategories. This category has only the following subcategory. P. Polyboroides (3 P)
The harriers circle an area several times listening and looking for prey. Harriers use hearing regularly to find prey, as they have exceptionally good hearing for diurnal raptors, this being the function of their owl-like facial disc. [12] This harrier tends to be a very vocal bird while it glides over its hunting ground.
For example, for parents to assess nestling conditions and needs and to then adjust their care and feeding appropriately. [6] Black harriers display carotenoid based colouration from a few days of after birth. These carotenoid pigments cannot be synthesised and need to be ingested by the harriers.
Its long legs allow it to pluck frogs and fish from the water mid-swoop. The western marsh harrier is a typical harrier, with long wings held in a shallow V in its low flight. It also resembles other harriers in having distinct male and female plumages, but its plumages are quite different from those of its relatives.
It is a large, bulky harrier, larger than other European harriers, with fairly broad wings, and is sexually dimorphic. The male's plumage is mostly a cryptic reddish-brown with lighter yellowish streaks, which are particularly prominent on the breast. The head and shoulders are mostly pale greyish-yellowish.