Parasitic Jaeger attacks on Gulls—Lake Superior
Автор: Sparky Stensaas
Загружено: 2020-11-05
Просмотров: 17850
Parasitic Jaegers migrate through Lake Superior in spring and fall. We often see them harassing gulls in mid to late September off of Duluth, Minnesota's Park Point and Wisconsin's Wisconsin Point. Long-tailed, Pomarine and Parasitic can all be seen here, but Parasitic Jaeger is the most common by far. They will somehow single out a Ring-billed Gull that it feels has a crop full of food. I suppose they can see the full gullet. Then they perform the bird equivalent of a aerial "dog fight" and scare the gull into coughing up its last meal. The jaeger can often catch the regurgitant in mid air! You will see a successful "hunt" in this video. By the way, "jaeger" is "hunter" in German.
These attacks were filmed in mid to late September 2020 off Superior, Wisconsin's Wisconsin Point with the Panasonic GH5 at 180 fps.
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