| Common Redstart (Phoenicurus phoenicurus) | | 2023-05-01 | 2023-05-01 | | Knattholmen (Vestfold, Norway) | |
| Common Redstart (Phoenicurus phoenicurus) | | 2023-05-01 | 2023-05-01 | | Knattholmen (Vestfold, Norway) | |
| European Hornet (Vespa crabro) | | 2021-07-01 | 2021-06-29 | | Knattholmen (Vestfold, Norway) | |
| Green Woodpecker (Picus viridis) | | 2018-09-02 | 2018-09-01 |  | Knattholmen (Vestfold, Norway) |  |
| Linnet (Carduelis cannabina) | | 2018-07-22 | 2018-07-20 | | Knattholmen (Vestfold, Norway) | |
| Grey Heron (Ardea cinerea) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Common Shelduck (Tadorna tadorna) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Greylag Goose (Anser anser) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Barnacle Goose (Branta leucopsis) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Canada Goose (Branta canadensis) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Mute Swan (Cygnus olor) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Common Tern (Sterna hirundo) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Common Redstart (Phoenicurus phoenicurus) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Great Cormorant (Phalacrocorax carbo) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Great Black-backed Gull (Larus marinus) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Eurasian Oystercatcher (Haematopus ostralegus) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Eurasian Wryneck (Jynx torquilla) | | 2018-05-15 | 2018-05-06 | | Knattholmen (Vestfold, Norway) | |
| Great Cormorant (Phalacrocorax carbo) | | 2018-04-22 | 2018-04-20 | | Knattholmen (Vestfold, Norway) | |
| Eurasian Oystercatcher (Haematopus ostralegus) | | 2018-04-22 | 2018-04-20 | | Knattholmen (Vestfold, Norway) | |
| Common Shelduck (Tadorna tadorna) | | 2018-04-22 | 2018-04-20 | | Knattholmen (Vestfold, Norway) | |
| Grey Heron (Ardea cinerea) | | 2018-04-22 | 2018-04-20 | | Knattholmen (Vestfold, Norway) | |
| Mute Swan (Cygnus olor) | | 2018-04-22 | 2018-04-20 | | Knattholmen (Vestfold, Norway) | |
| Red-breasted Merganser (Mergus serrator) | | 2018-04-22 | 2018-04-20 | | Knattholmen (Vestfold, Norway) | |
| Barn Swallow (Hirundo rustica) | | 2017-05-24 | 2017-05-26 | | Knattholmen (Vestfold, Norway) | |
| Great Grey Shrike (Lanius excubitor) | | 2017-05-24 | 2017-05-24 | | Knattholmen (Vestfold, Norway) | |
| Common Shelduck (Tadorna tadorna) | | 2017-05-24 | 2017-05-05 | | Knattholmen (Vestfold, Norway) | |
| Three-toed Woodpecker (Picoides tridactylus) | | 2017-05-24 | 2017-05-26 | | Knattholmen (Vestfold, Norway) | |
| Common Redstart (Phoenicurus phoenicurus) | | 2017-05-24 | 2017-05-24 | | Knattholmen (Vestfold, Norway) | |
| Greylag Goose (Anser anser) | | 2016-02-27 | 2016-02-27 | | Knattholmen (Vestfold, Norway) | |
| Thrush Nightingale (Luscinia luscinia) | | 2011-06-02 | 2011-05-30 | | Knattholmen (Vestfold, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education