Wing clipping is the process of trimming a
bird's
primary flight feathers (or primaries) so that he or she
is no longer fully-flighted.
As the clip only trims
feathers and not the wings themselves, it does not cause the
bird major physical harm.
Since the feathers do not have nerve endings, the bird
does not feel pain. Therefore, wing clipping is similar to a
person having their nails clipped or their hair cut.
An appropriate wing clip will allow a bird to glide
across the room without gaining altitude. If too few
primaries are taken, the bird will be able to gain altitude;
if too many primaries are taken, the bird will plummet like
a rock. Those experienced with wing clipping will only take
one or two feathers from each side at a time and see how
well the bird can fly before taking more feathers, to avoid
causing the bird to plummet and potentially be injured in
doing so.
Many people who keep birds as pets prefer to clip their
wings so that their birds will not crash into mirrors,
walls, or windows, all of which are serious hazards to
flighted birds: A hard crash can result in instant death.
Other people clip their birds' wings to minimize the
chances of them flying away if they accidentally get
outdoors. However, in the right conditions -- particularly
windy days -- birds whose wings are clipped can still gain
altitude and fly out of their owner's reach.
Another reason for clipping wings is to keep pet birds
that are social in nature (such as
parrots) more tame. When birds are unclipped, they
typically have a greater sense of independence and can be
less likely to socialize with their owners.
When a bird's wings are clipped, an equal number of
feathers are taken from each wing. In ducks and chickens
often just one wing is clipped (i.e. 10 primary feathers of
one wing), they are not good fliers and to clip one wing is
enough to unbalance their flight and keep them grounded. To
keep a bird from being fully-flighted, wing clipping must be
done after every
moult, but it is important to only clip the wings when
the feathers have finished growing and there is no blood in
them. If the shaft resembles the ink tube of a ball point
pen clipping can result in the death of the bird. Many
people clip their birds' wings themselves, although it is a
good idea to have an
avian veterinarian, pet store employee, or breeder
demonstrate the process first.