The birds! The Birds of Paradise!!!
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LabofOrnithology·88 βίντεο
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2012:What a Year for the Birds!
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Πηγή
http://www.birdsofparadiseproject.org/media.php?page=95
Cornell Lab of Ornithology
LabofOrnithology·88 βίντεο
Life's a Stage
Though the birds aren't doing their displays for entertainment value, they have to hone their techniques as much as any human performer, spending hours practicing and maintaining their display courts. In this light-hearted piece we've added a musical accompaniment to several birds-of-paradise displays. Will all the dancing pay off? You'll just have to watch.
http://www.birdsofparadiseproject.org/
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Introduction
It took 8 years and 18 expeditions to New Guinea, Australia, and nearby islands, but Cornell Lab scientist Ed Scholes and National Geographic photographer Tim Laman succeeded in capturing images of all 39 species in the bird-of-paradise family for the first time ever. This video gives a sense of their monumental undertaking and the spectacular footage that resulted.
Inspection & Touch and the Birds-of-Paradise
Courtship has distinct phases. It begins with a male's loud calls for attracting females to his display site, and ends when females decide whether to mate or leave. The final phase, just before the female chooses, is critical. This stage includes close inspection by females and sometimes even physical touch. It all leads up to a crucial moment of female choice. The Cornell Lab's Ed Scholes explains...
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Twelve-wired Bird-of-Paradise What Are the Wires For?
This video captures the progression of courtship. It begins with a male doing a practice display on his own. When a female appears, he puts his technique into action, climbing his display pole and brushing her with his wiry display feathers. The female continues to show interest but eventually leaves—an example of the extreme degree of selectivity females use in choosing their mates.
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Greater Bird-of-Paradise Phases of Courtship
Watch as two male Greater Birds-of-Paradise display together in the rainforest canopy. Several females arrive to check out the males, spurring them to begin a dual display. One female chooses a male, allowing him to approach and begin the next phase of display. The closeness and physical contact give her the chance to make a final decision about his suitability.
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2012:What a Year for the Birds!
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Πηγή
http://www.birdsofparadiseproject.org/media.php?page=95
Cornell Lab of Ornithology