| 2020-05-16 - Østensjøvannets fugleobservasjonsbu, Østensjøvannet, Oslo (Norway) - OlaB Black-headed Gull (50), Canada Goose (10), Common Goldeneye (2), Common Sandpiper (4), Eurasian Blue Tit (2), Eurasian Coot (10), Eurasian Moorhen (4), Graylag Goose (15), Great Crested Grebe (4), Green-winged Teal (1), Mallard (4), Mute Swan (27), Tufted Duck (20), Western Yellow Wagtail (1), White Wagtail (2), Willow Warbler (2) 
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| 2020-05-10 - Østensjøvannets fugleobservasjonsbu, Østensjøvannet, Oslo (Norway) - OlaB Canada Goose (8), Canada Goose (2), Eurasian Blue Tit (2), Eurasian Coot (17), Eurasian Moorhen (7), Graylag Goose (4), Great Crested Grebe (2), Hooded Crow (1), Mallard (4), Mute Swan (26), Reed Bunting (1), Tufted Duck (26), White Wagtail (7), Wood Sandpiper (3) 
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