| Eurasian Magpie (Pica pica) | | 2016-01-31 | 2016-01-31 | | Kalvskinnet (Trøndelag, Norway) |  |
| Hooded Crow (Corvus cornix) | | 2016-01-31 | 2016-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Great Tit (Parus major) | | 2016-01-31 | 2016-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| House Sparrow (Passer domesticus) | | 2016-01-31 | 2016-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Herring Gull (Larus argentatus) | | 2016-01-31 | 2016-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Lesser Redpoll (Carduelis cabaret) | | 2016-01-31 | 2016-01-31 |  | Kalvskinnet (Trøndelag, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2016-01-31 | 2016-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Great Cormorant (Phalacrocorax carbo) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Eurasian Magpie (Pica pica) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Herring Gull (Larus argentatus) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Jackdaw (Corvus monedula) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Great Tit (Parus major) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Hooded Crow (Corvus cornix) | | 2014-01-29 | 2014-01-26 | | Kalvskinnet (Trøndelag, Norway) | |
| Winter Wren (Troglodytes troglodytes) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Lesser Redpoll (Carduelis cabaret) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Eurasian Bullfinch (Pyrrhula pyrrhula) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Goldcrest (Regulus regulus) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Willow Tit (Poecile montanus) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Jackdaw (Corvus monedula) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Feral Pigeon (Columba livia domestica) | | 2013-01-28 | 2013-01-27 | | Kalvskinnet (Trøndelag, Norway) | |
| Hooded Crow (Corvus cornix) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| House Sparrow (Passer domesticus) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Great Cormorant (Phalacrocorax carbo) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Fieldfare (Turdus pilaris) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Herring Gull (Larus argentatus) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Great Tit (Parus major) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
| Eurasian Magpie (Pica pica) | | 2010-01-31 | 2010-01-31 | | Kalvskinnet (Trøndelag, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education