| Blue Tit (Cyanistes caeruleus) | | 2010-01-31 | 2010-01-31 | Bærums Verk (Akershus, Norway) |  |
| Great Tit (Parus major) | | 2010-01-31 | 2010-01-31 | Bærums Verk (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2010-01-31 | 2010-01-31 | Bærums Verk (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2010-01-31 | 2010-01-31 | Bærums Verk (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2010-01-31 | 2010-01-31 | Bærums Verk (Akershus, Norway) | |
| Hooded Crow (Corvus cornix) | | 2010-01-31 | 2010-01-31 | Bærums Verk (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2009-01-25 | 2009-01-25 | Bærums Verk (Akershus, Norway) | |
| Great Tit (Parus major) | | 2009-01-25 | 2009-01-25 | Bærums Verk (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2009-01-25 | 2009-01-25 | Bærums Verk (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2009-01-25 | 2009-01-25 | Bærums Verk (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2009-01-25 | 2009-01-25 | Bærums Verk (Akershus, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
| Great Tit (Parus major) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
| Feral Pigeon (Columba livia domestica) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
| Black-billed Magpie (Pica pica) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
| Nuthatch (Sitta europaea) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
| Common Blackbird (Turdus merula) | | 2008-01-27 | 2008-01-26 | Bærums Verk (Akershus, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education