evanescent: fleeting, transitory
evanescent wave: a nearfield standing wave, employed for total internal reflection microscopy
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Thin-billed prions are shy bird that only come out after dark. The long-exposure photos below capture their flight paths, using the ship's searchlight to illuminate the white under-wings of the prions.
Photos below are from our first, brief visit to New Island, londing by Zodiac from MV Ushuaia in 2013. The black-browed albatross colony could besmelled and then heard long before the many hundreds of birds were seen. The albatrosses were preening and incubating their one white egg. Intermixed were rockhopper penguins warming their two eggs and a smattering of imperial shags—all variously exhibiting the behavior of birds at the beginning of their breeding season. No chicks had hatched, but there was plenty of bonding behavior, and defense of nest territories from neighbors and aerial predators like caracaras, skuas and gulls. Some were still actively mating, while others turned eggs as shags with beaks full of nest material flew into the colony. The nesting cliffs, hundreds of feet above the sea, are both steep and impressive angular shelves with birds nesting on the top levels. Rockhoppers climb these cliffs on a daily basis—they surf in on the swells and then climb to the safety of the upper levels in amongst the other seabirds. Up the hill from this noisy, smelly mix of birds there was a busy gentoo penguin colony, again with birds on eggs, their attendant predators, and each pile of stone nest site defended just outside pecking distance from the neighbors.
updated 02/13/2017
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Gentoo Penguins on beach after passing squall: New Island, Falkland Islands 
