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Kookaburra Development |
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On this page you will find some detail on their development from the egg. They grow with amazing speed. When they hatch they are around 22grams in weight and 38 days later they will be flying, and will have attained a weight of around 300grams. |
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Below is a series of pictures taken at day 1, day 11, day 21 and day 29. |
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Day 1 Just hatched and weighing in at 21 and 22grams respectively |
Day 11 Now showing signs of pin feathers and weighing 114 and 132 grams |
Day 21 Now fully covered in pin feathers and weigh 231 and 245grams |
Day 29 Both now showing a good covering of feathers and weighing 273 and 293grams |
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(Please click on thumbnails to enlarge) |
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You may be wondering why the difference in weights. I have this theory that it may be sex related. At this stage I have only a small l amount of evidence to back up this idea but in the past when I have handraised these birds, quite often there will be a weight difference. Some birds I had DNA sexed and it turned out that the heavier birds were usually female, but not exclusively, so the theory may be flawed. I am still working on it! |
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Here is a short video
sequence of the birds being fed at day 33 (with apologies for the
quality of the video).
Please click here At this age and
size they are,
as you will see, quite capable of taking a whole mouse easily.
In this sequence one is given a whole mouse and the other a day old
chicken cut in quarters. |
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