标题: Atlantic Puffin [打印本页] 作者: choi 时间: 2-14-2012 13:14 标题: Atlantic Puffin Discovery of a Maine Puffin's Winter Home! Tiny tracking devices reveal surprising journey at sea. Project Puffin, Feb 8, 2012. http://projectpuffin.org/wanderingpuffins.html
Quote:
"Puffins, who can live 30 or more years, return each year to the island where they previously nested. They usually appear in early spring and each pair lays their single egg in a deep rock crevice. After an incubation period of about six weeks, the egg hatches and parents tend the chick for the next six weeks.
"The tiny, capsule-shaped tracking devices measure light intensity and time of day to estimate day length and plot the puffins’ locations (+/- 115 miles). Unlike satellite transmitters that are attached to larger animals, these geolocators store information until the animal is re-captured and the device is removed to retrieve the data.
"While soaring seabirds such as albatross and shearwaters are known to fly much further than puffins, Cabot’s flight is all the more amazing for the energy expended. Puffins typically fly by rapid flapping, in which they reach speeds of up to 50 mph, beating their wings 300-400 beats per minute.