Sulphur Cockatoo At Cedar Creek. Queensland, Australia. (2) by Ralph de Zilva

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Sulphur Cockatoo At Cedar Creek. Queensland, Australia. (2) by 


Nikon D700 & Nikkor 300mm f/2.8G lens

Tie Breaker challenge winner in the “All That Is Nature” group on 19.01.2013
Tied First Place Winner in the All That Is Nature groups “Favourite Shot” challenge on 29.12.2012
Top Ten in the Nikon Fun Groups "January 2013 Avatar " challenge on 29.12.2012

Featured in
Featured For A Challenge on 23.01.2014
Love These Creatures on 15.01.2013
The Queensland Group on 21.12.2012
Australia At Large on 19.12.2012
300 + Go Long on 17.12.2012
Backyard Macro & Closeups on 16.12.2012
You Got It We Want It on 16.12.2012
Natures Wonders on 16.12.2012
Queensland’s South East on 16.12.2012
A Place To Call Home on 15.12.2012
The Silky Touch on 14.12.2012

The Sulphur-crested Cockatoo, is a relatively large white cockatoo found in wooded habitats in Australia and New Guinea. They can be locally very numerous, leading to them sometimes being considered pests. They are well known in aviculture, although they can be demanding pets.

In Australia, Sulphur-crested Cockatoos can be found widely in the north and east, ranging as far south as Tasmania, but avoiding arid inland areas with few trees. They are numerous in suburban habitats in cities such as Adelaide, Melbourne, Canberra, Sydney and Brisbane. Except for highland areas, they occur throughout most of New Guinea and on nearby smaller islands such as Waigeo, Misool and Aru, and various islands in the Cenderawasih Bay and Milne Bay.

Within Australia, Sulphur-crested Cockatoos of the nominate race have also been introduced to Perth, which is far outside the natural range. Outside Australia, they have been introduced to Singapore, where their numbers have been estimated to be between 500 and 2000. They have also been introduced to Palau and New Zealand. In New Zealand the introduced populations may number less than 1000. This species has also been recorded from various islands in Wallacea (e.g. Kai Islands and Ambon), but it is unclear if it has managed to become established there.

Their distinctive raucous call can be very loud; it is adapted to travel through the forest environments in which they live, including tropical and subtropical rainforests. These birds are naturally curious, as well as very intelligent. They have adapted very well to European settlement in Australia and live in many urban areas.

These birds are very long-lived, and can live upwards of 70 years in captivity, although they only live to about 20–40 years in the wild. They have been known to engage in geophagy, the process of eating clay to detoxify their food. These birds produce a very fine powder to waterproof themselves instead of oil as many other creatures do.

The Sulphur-crested Cockatoo is a seasonal breeder in Australia, little is known about its breeding behaviour in New Guinea. In southern Australia the breeding season is from August to January, whereas in northern Australia the season is from May to September. The nest is a bed of wood chips in a hollow in a tree. Like many other parrots it competes with others of its species and with other species on nesting sites. Two to three eggs are laid and incubation lasts between 25–27 days. Both parents incubate the eggs and raise the nestlings. The nestling period is between 9 to 12 weeks, and the young fledgelings remain with their parents for a number of months after fledging.

Species that feed on the ground are very vulnerable to predator attack. The Cockatoo has evolved a behavioural adaptation to protect against this: whenever there is a flock on the ground, there is at least one high up in a tree (usually a dead tree), keeping guard. This is so well known that it has even entered Australian slang: a person keeping guard for sudden police raids on illegal gambling gatherings is referred to as a Cockatoo or Cocky for short.

Tags

birds, nature, wildlife

I have always had a love of capturing images and in my early teens took many photographs on my little Kodak camera. I loved the wild open spaces and bird life in particular and longed to be able to be an accomplished photographer. It took ill health and a forced early retirement to re-kindle this love of photography. I am a self-taught amateur photographer who has had no formal training. I take great pride and joy in my work and these days have the time to pursue this wonderful hobby.

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Comments

  • Ray Clarke
    Ray Clarkealmost 2 years ago

  • Thanks Ray.

    – Ralph de Zilva

  • Laddie Halupa
    Laddie Halupaalmost 2 years ago

  • Thanks very much Laddie for the feature.

    – Ralph de Zilva

  • Celeste Mookherjee
    Celeste Mookhe...almost 2 years ago

    Strong feeling of motion in this one, as it looks like the bird might have been landing on the branch. Either that or the bird is grooming. :) Wonderfully soft background!

  • The cocky was just grooming himself, Celeste in the late afternoon light. Thanks very much for your comment and fave.

    – Ralph de Zilva

  • Bette Devine
    Bette Devinealmost 2 years ago

    A Cocky caught in an unusual pose that still somehow communicates the character of the bird! Wonderful.

  • Thanks so much, Bette for the wonderful comment.

    – Ralph de Zilva

  • Tracie Louise
    Tracie Louisealmost 2 years ago

    Stunning work

  • Thanks very much, Tracie for the feature.

    – Ralph de Zilva

  • Rainy
    Rainyalmost 2 years ago

    Congratulations! Your artwork has been featured in the
    Nature’s Wonders group.!!

  • Many thanks for the feature. Much appreciated.

    – Ralph de Zilva

  • cindy50
    cindy50almost 2 years ago

    Wonderful work! – click on the banner and it will take you straight to view your work on our Home Page

  • Thank you so much, Jacqui for the feature. Greatly appreciated.

    – Ralph de Zilva

  • Yool
    Yoolalmost 2 years ago

  • Really appreciate the feature. Thank you very much, Yool.

    – Ralph de Zilva

  • Linda Sparks
    Linda Sparksalmost 2 years ago

    From among so many terrific shots, I’ve chose 12 that I feel rank up there with professional work. Congrats on having a great eye and great skill.

  • Thank you so much, Linda for the feature. Much appreciated.

    – Ralph de Zilva

  • Dean Cunningham
    Dean Cunninghamalmost 2 years ago

    thats awesome – wonderful pic ralph !

  • Thanks very much Dean for the comment and fave.

    – Ralph de Zilva

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