Throughout history, certain species of birds have formed strategic
partnerships with other animals. And these partnerships have seeming
served both of them well. Here are just a few of those pairings.
One of these strange relationships is the one that wild pigs have with
robins in Europe. Wild pigs are known for their digging ability. So much
so, that many people refer to them as digging machines. And what they
are digging for is root foods which they live on. They also feed on
grubs and small worms that they find in the soil.
Over the years, the robin has noticed that whenever these wild pigs
appear and start to dig up the ground, they are also digging up and
exposing worms. As a result, robins have learned to stay close to these
pigs as they begin to dig so they can scoop up the worms that appear on
the surface.
In a like manner, the Nightjar has an interesting symbiotic relationship
with wild cattle and goats in areas where the both live. For the most
part, nightjars are birds of the night. Their primary diet consists of
moths and beetles. The bird is a great aerial hunter and, even in mid
flight, is capable of deftly snatching moths from the air. However, when
it is on the ground, it is typically hunting ants and beetles.
During the passing of many hundreds of years, the nightjar has come to
notice that when wild cattle and goats are grazing nearby, that their
continuous moving around agitates the ground on which they are grazing.
And as they do this, all of the activity causes insects to come above
ground. So insects such as beetles and moths, are all of a sudden on the
surface making them easy pickings for predators. As a result, the
nightjar has learned that its often easier to follow the herds and feed
off of the insects that they dig up than it is to hunt and scrounge for
their own meals.
The oxpecker bird is yet another illustration of birds forming symbiotic
relationships. The oxpecker is a close relation to the starling. And
within Africa, this bird has a real working partnership with many
animals - antelope, buffalo, rhinoceros, and even the giraffe. The
relationship has to do with the fact that ticks and lice are very common
in this environment.
They are a nuisance to these large animals because their eggs hatch on
the animal's surface and immediately becomes a parasite by gorging on
their blood. If an animal gets enough of these on its skin, it can find
its strength and staminal slowly being drained away.
Oxpeckers love these parasites because they contain lots of blood which
has a ton of nourishments. They comb through the skin and hairs of these
large animals and consume all of the ticks and lice that they find. A
win/win for everyone.
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