Red Tailed Black Cockatoo
(Calyptorhynchus banksii graptogyne)
I didn’t really know what to do for my expository essay. I knew that
I wanted to write about an animal and since I am a bird owner, I decided to
write about a bird. I also wanted to learn more about endangered birds and
what is being done to save their lives. I own a cockatiel, which is
currently a very common house pet and therefore not endangered. As I
researched more about birds, I came to a Website about endangered birds.

The Red Tailed Black Cockatoo caught my attention with its beautiful
colors. This beautiful large bird with a bright red tail reminded me of my
bird but only much larger. I immediately knew I had found my subject and
began to write down notes.

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The Red Tailed Black Cockatoo is a very unique bird. People say the
Red Tailed Black Cockatoo is unique because of its pattern of red and black
wings. If you were to lift a Red Tailed Black Cockatoo’s wing you can see
the different patterns. Either you see the red over-lapping the black, the
black over-lapping the red, black bars across the red pattern, or just red
on red. The Red Tailed Black Cockatoo is mostly known for its loud noises
and spectacular wings. The Red Tailed Black Cockatoo is one of the largest
members of the endemic Australian genus, which includes most of the black
cockatoos. You can tell the difference between a male and a female Red
Tailed Black Cockatoo. Males are all black with red patterns in their
tails. Females resemble males but have yellow spots on the head and belly
and black bars across the red tail patterns.

The Red Tailed Black Cockatoo are mostly found in South Australia.

The population does not exceed 1,000 individuals of which fewer than 200
are thought to breed each year. The population of the Red Tailed Black
Cockatoos is declining and may soon be extinct if nothing is done to save

There are people who are trying to save this bird. One project to
save the Red Tailed Black Cockatoo includes making nests and positioning
them on top of posts for birds that need to nest. The already made nests
are making up for the large number of trees being cut down in South
Australia. This increase in nests will help the Red Tailed Black Cockatoo
increase its population.

The breeding period for a Red Tailed Black Cockatoo is usually
during October-May. The tree they mainly nest in is called River Red Gum.

It usually takes up to about 28 days of incubation and 87 days of the
taking care of the young birds. Those birds that do breed only breed up to
one or twice a year.

The Red Tailed Black Cockatoos are endangered because the nest
hollows shortage. It has been proven that the failure, despite searching,
to find many nests and the fast adoption of the nest boxes made by humans
is evidence that there is a shortage of nest hollows. A shortage of nest
hollows is thought to limit the number of cockatoos trying to breed.


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