My Backyard Over the Summer

The Satin Bowerbird

I took many photos over the summer of local birds that visited my back yard. Of all the photos The one above is my favourite. I chose this photo because this particular bird, the Satinbird or Bowerbird, is an extemely shy bird and so very dificult to photograph - they are so skittish. I have included an album of the different birds for you to look at if you wish - you will find a link at the bottom of this post. I suggest you use the slideshow to view the photos.

The Satin Bowerbird.

The most notable characteristic of bowerbirds is their extraordinarily complex courtship and mating behaviour, where males build a bower to attract mates. There are two main types of bowers. One clade of bowerbirds build so-called maypole bowers, which are constructed by placing sticks around a sapling; in some species, these bowers have a hut-like roof. The other major bowerbuilding clade builds an avenue type-bower made of two walls of vertically placed sticks. In and around the bower, the male places a variety of brightly colored objects he has collected. These objects — usually different among each species — may include hundreds of shells, leaves, flowers, feathers, stones, berries, and even discarded plastic items, coins, nails, rifle shells, or pieces of glass. The males spend hours arranging this collection. Bowers within a species share a general form but do show significant variation, and the collection of objects reflects the biases of males of each species and its ability to procure items from the habitat, often stealing them from neighboring bowers. Several studies of different species have shown that colors of decorations males use on their bowers match the preferences of females.

Mate-searching females commonly visit multiple bowers, often returning to the male several times, watching his elaborate courtship displays and inspecting the quality of the bower and tasting the paint the male has placed on the bower walls. Many females end up selecting the same male, and many under-performing males are left without copulations. Females mated with top-mating males tend to return to the male the next year and search less. Bowerbirds have also been observed creating optical illusions in their bowers to appeal to mates. They arrange objects in the bower's court area from smallest to largest, creating aforced perspective which holds the attention of the female for longer. Males with objects arranged in a way that have a strong optical illusion are likely to have higher mating success. - (wikipedia)

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Click here to see an album of birds from my backyard.
http://cleaunz.multiply.com/photos/album/115/Summers_Backyard_Birds

or
Use the Slideshow
http://multiply.com/slideshow/cleaunz:photos:115
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