Adult black-legged kittiwake (Rissa tridactyla) in flight near Alexander Island in Franz Josef Land, Russia, Eurasia

rissa tridactyla flight alexander island russia bird adult bird soaring wildlife nature avian eurasia seabird marine bird coastal cliffs breeding habitat migration ecology natural behavior wings feathers wingspan ocean saltwater environment rocky shore aerial view monitoring conservation habitat preservation cold climate biodiversity arctic cold waters sea oceanbirds avifauna ornithology birdwatching marine ecosystem animal behavior observational study species identification habitat survey natural habitat ecological balance skimming feeding nesting