| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-30 | 2025-04-29 | | Oshaug (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-28 | 2025-04-28 | | Flagghaugen (Nordland, Norway) |  |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-26 | 2025-04-26 | | Strandveien 20 (Finnmark, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-26 | 2025-04-26 | | Finnlandsleira, Brøstadbotn (Troms, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-25 | 2025-04-23 | | Østensjøvannet (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-24 | 2025-04-15 | | Ringås (Innlandet, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-24 | 2025-04-23 | | Sofienbergparken (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-23 | 2025-04-12 | | Saltraumbrua (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-23 | 2025-04-23 | | Stokka/Hålandsvannet (Rogaland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-23 | 2025-04-23 | | Middelalderparken (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-23 | 2025-04-23 | | Førde (Vestland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-23 | 2025-04-23 | | Akerselva (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-22 | 2025-04-21 | | Bamblekysten (Telemark, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-22 | 2025-04-01 |  | Østensjøvannet (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-22 | 2025-04-22 | | Haukvannet (Trøndelag, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-21 | 2025-04-21 | | Vingnes, sør Lillehammer båthavn, (Innlandet, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-21 | 2025-04-21 | | Nordbytjernet (Akershus, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-20 | 2025-04-20 | | Sjøstrandveien 30B (Akershus, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-20 | 2025-04-20 | | Svanebukta (Østfold, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-19 | 2025-04-19 | | Halsvågen (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-19 | 2025-04-19 | | Storeidvannet (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-19 | 2025-04-19 | | Prestøya, sør (Finnmark, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-19 | 2025-04-18 | | Storeidvannet (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-19 | 2025-04-18 | | Tussan (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-18 | 2025-04-18 | | Jomfruland (Telemark, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-18 | 2025-04-18 | | Slorene våtmarksområde (Akershus, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-17 | 2025-04-17 | | Nedre Smestaddam (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-17 | 2025-04-04 | | Elveparken (Buskerud, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-17 | 2025-04-10 | | Østensjøvannet (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-17 | 2025-04-15 | | Åsgårdstrand (Vestfold, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-16 | 2025-04-16 | | Kirkealleen (Akershus, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-16 | 2025-04-16 | | Hvalstrand (Akershus, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-16 | 2025-04-16 | | Sørbotten Oksevåg (Finnmark, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-16 | 2025-04-16 | | Rauma (Møre og Romsdal, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-15 | 2025-04-15 | | Rognan, Sortland (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-15 | 2025-04-15 | | Leknes (Nordland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-13 | 2025-03-30 | | Preståsen (Vestfold, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-13 | 2025-04-13 | | Ytterøy (Trøndelag, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-13 | 2025-04-13 | | Svartneset - Flatholmen, Hommelvik (Trøndelag, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-12 | 2025-04-12 | | Østensjøvannet (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-12 | 2025-04-12 | | Prestøya, sør (Finnmark, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-12 | 2025-04-11 | | Østensjøvannet (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-12 | 2025-04-12 | | Ringstabekk (Akershus, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-11 | 2025-04-11 | | Smestaddammen (Oslo, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-11 | 2025-04-11 | | Nossum, Levanger (Trøndelag, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-08 | 2025-04-08 | | Fevik (Agder, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-08 | 2025-04-08 | | Karmsundet (Rogaland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-06 | 2025-04-05 | | Mosvatnet (Rogaland, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-04 | 2025-04-04 | | Korsvika (Trøndelag, Norway) | |
| Black-headed Gull (Chroicocephalus ridibundus) | | 2025-04-04 | 2025-04-04 | | leknes (Nordland, Norway) | |