Black Kite
Common name for a medium-sized bird of prey, with the scientific name
Milvus migrans.
This hawk-like bird is widespread, ranging from temperate and tropical
parts of Africa and Europe to Asia and Australia, though curiously, it
is not found in the Indonesian archipelago between the South East Asian
mainland and the Wallace Line, i.e. the border between Asia and
Australia. In Thailand, this bird of prey is a winter visitor and
passage migrant, known by the designation
yiyaw
dam (เหยี่ยวดำ). Despite its name, the
Black Kite is not black, but rather dark brown, apart perhaps from the
dark, almost black tip of the beak. It has a shallow-forked tail, best
visible in flight, during which it continuously angles this body part
from side to side. During flight, also a pale covert-band is visible.
Juvenile birds have broad white steaks on the body and wings, and on the
underside, the tail is whitish and the wing's apex has
a broad white patch (fig.). There are several subspecies, including the European Black Kite (Milvus
migrans migrans), the
Black-eared Kite (Milvus migrans lineatus
- fig.), the
Pariah Kite (Milvus migrans govinda -
fig.), the Fork-tailed Kite (Milvus
migrans affinis), and the Taiwan Kite (Milvus migrans formosanus), of
which both the Pariah Kite and the Black-eared Kite occur in mainland
Southeast Asia, with the latter being somewhat larger and having a
typically whiter face and throat
(fig.). The Pariah Kite (fig.)
is also known as Small Indian Kite (fig.),
and
is
often found
in urban areas with a high human population, such as Delhi in India,
which after a survey in 1967 claimed to have about 2,200 pairs. The
latter subspecies is
easily distinguished by its shallow
forked tail (fig.). The ability to adapt to a wide variety
of habitats, makes the Black Kite the most numerous bird of prey, found
in crowded cities, as well as in desolate areas. Its diet consists of
insects, lizards, frogs, carrion, and small mammals, such as rats.
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