Parrot
Parrot, common name applied to any of about
340 species of brightly colored birds that make up the parrot
family. Groups of parrots that have their own common names
include the cockatoos, lories, lovebirds, macaws, and parakeets.
In length, parrots range from the buff-faced pygmy parrot
of New Guinea at 8.4 cm (3.3 in) to the hyacinth macaw of
South America at 100 cm (39.4 in). A large part of the macaw's
length is attributable to its long tail, and it is probably
outweighed by the very large (60 cm/23.6 in) but short-tailed
palm cockatoo of New Guinea.
Parrots have curved, hooked bills and short
legs. Their toes are zygodactyl,-that is, the first and fourth
are turned backward. They walk awkwardly but are excellent
climbers, often using their bills to pull themselves up to
a higher branch. In most parrots the tongue is thick and muscular,
used deftly for manipulating seeds, which, with fruit, are
their principal food. In the lories the tongue is longer and
has a brushlike tip for feeding on nectar.
Most parrots are tropical, with only a few species reaching
northern and southern temperate areas. The areas of greatest
diversity include South America, Australia, and New Guinea
and adjacent islands. Relatively few species inhabit Africa
or mainland Asia.
The predominant body color in the family
is green, but there are many exceptions. Some American
parrots are predominantly blue or yellow, and many have
touches of red in the plumage as well. The most colorful
parrots are the lories, in which reds and greens predominate,
but blue, purple, brown, yellow, and black also appear.
The cockatoos are mostly white or black, with touches
of yellow, red, or pink.
Virtually all parrots are hole-nesters, using holes
in trees, termite mounds, rock cavities, or ground tunnels.
The main exception is the monk parakeet of temperate
South America, which builds large nests of sticks. In
most populations, these are communal nests, with each
pair having its own entrance to a structure that can
become large and heavy enough to break the branches
on which it is placed. In the mid-20th century, many
monk parakeets were imported to the United States as
cage birds. Some escaped, and many owners, finding their
pets unbearably noisy, simply released them. Well adapted
to the temperate climate, they bred and formed colonies
in several parts of the United States, but in most areas
an effort was made to destroy the feral populations,
as this species is known to be a serious pest in agricultural
areas of its native habitat.
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Parrots
cages
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The ability of many parrots to imitate
the human voice and other extrinsic sounds is one reason for
their popularity as pets. The best of these is the African
gray parrot, a 30-cm (12-in) gray bird with a short red tail.
Experiments have shown that individuals of this species may
have cognitive abilities equal to those of porpoises and primates.
Among American parrots the best talkers are the amazons.
The heavy demands of the cage-bird trade,
together with loss of habitat, have resulted in many species
of parrots becoming endangered. ThoUKnds of parrots are brought
into Europe and North America annually, both legally and illegally,
and many do not survive the journey. In most countries the
capture, export, and import of parrots are strictly regulated,
but the laws are difficult to enforce. Ideally, only those
parrots that have been bred in captivity should be kept as
pets.
Scientific classification: Parrots
make up the family Psittacidae. The buff-faced pygmy parrot
is classified as Micropsitta pusio, the hyacinth macaw as
Anodorhynchus hyacinthinus, the short-tailed palm cockatoo
as Probosciger aterrimus. The monk parakeet is classified
as Myiopsitta monachus, and the African gray parrot as Psittacus
erithacus. Amazons make up the genus Amazona.
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