| Black-billed Magpie (Pica pica) | | 2022-01-31 | 2022-01-30 | Ustaoset (Buskerud, Norway) |  |
| Eurasian Tree Sparrow (Passer montanus) | | 2022-01-31 | 2022-01-30 | Ustaoset (Buskerud, Norway) | |
| Great Tit (Parus major) | | 2022-01-31 | 2022-01-30 | Ustaoset (Buskerud, Norway) | |
| European Greenfinch (Carduelis chloris) | | 2022-01-31 | 2022-01-30 | Ustaoset (Buskerud, Norway) | |
| European Greenfinch (Carduelis chloris) | | 2021-02-07 | 2021-02-01 | Ustaoset (Buskerud, Norway) | |
| Blue Tit (Cyanistes caeruleus) | | 2021-02-07 | 2021-02-01 | Ustaoset (Buskerud, Norway) | |
| Black-billed Magpie (Pica pica) | | 2021-02-07 | 2021-02-01 | Ustaoset (Buskerud, Norway) | |
| Eurasian Tree Sparrow (Passer montanus) | | 2021-02-07 | 2021-02-01 | Ustaoset (Buskerud, Norway) | |
| Great Tit (Parus major) | | 2021-02-07 | 2021-02-01 | Ustaoset (Buskerud, Norway) | |
| Downy Birch (Betula pubescens) | | 2016-06-01 | 2015-06-09 | Ustaoset (Buskerud, Norway) | |
| Redwing (Turdus iliacus) | | 2016-06-01 | 2016-05-17 | Ustaoset (Buskerud, Norway) | |
| Common Cuckoo (Cuculus canorus) | | 2016-06-01 | 2016-05-24 | Ustaoset (Buskerud, Norway) | |
| Colt's-foot (Tussilago farfara) | | 2016-06-01 | 2016-03-17 | Ustaoset (Buskerud, Norway) | |
| White Wagtail (Motacilla alba) | | 2016-06-01 | 2016-05-05 | Ustaoset (Buskerud, Norway) | |
| Willow Warbler (Phylloscopus trochilus) | | 2016-06-01 | 2016-05-11 | Ustaoset (Buskerud, Norway) | |
| Robin (Erithacus rubecula) | | 2016-06-01 | 2016-05-16 | Ustaoset (Buskerud, Norway) | |
| Downy Birch (Betula pubescens) | | 2016-06-01 | 2016-06-01 | Ustaoset (Buskerud, Norway) | |
| Bluethroat (Luscinia svecica) | | 2016-06-01 | 2016-05-17 | Ustaoset (Buskerud, Norway) | |
| Red Admiral (Vanessa atalanta) | | 2015-06-01 | 2015-04-19 | Ustaoset (Buskerud, Norway) | |
| Redwing (Turdus iliacus) | | 2015-06-01 | 2015-04-22 | Ustaoset (Buskerud, Norway) | |
| Colt's-foot (Tussilago farfara) | | 2015-06-01 | 2015-03-18 | Ustaoset (Buskerud, Norway) | |
| Bluethroat (Luscinia svecica) | | 2015-06-01 | 2015-05-18 | Ustaoset (Buskerud, Norway) | |
| White Wagtail (Motacilla alba) | | 2015-06-01 | 2015-04-22 | Ustaoset (Buskerud, Norway) | |
| Colt's-foot (Tussilago farfara) | | 2014-06-16 | 2014-04-06 | Ustaoset (Buskerud, Norway) | |
| Redwing (Turdus iliacus) | | 2014-06-16 | 2014-04-25 | Ustaoset (Buskerud, Norway) | |
| White Wagtail (Motacilla alba) | | 2014-06-16 | 2014-04-22 | Ustaoset (Buskerud, Norway) | |
| Common Cuckoo (Cuculus canorus) | | 2014-06-16 | 2014-05-20 | Ustaoset (Buskerud, Norway) | |
| Downy Birch (Betula pubescens) | | 2014-06-16 | 2014-05-28 | Ustaoset (Buskerud, Norway) | |
| Barn Swallow (Hirundo rustica) | | 2014-06-16 | 2014-06-16 | Ustaoset (Buskerud, Norway) | |
| Redwing (Turdus iliacus) | | 2013-05-12 | 2013-05-06 | Ustaoset (Buskerud, Norway) | |
| Colt's-foot (Tussilago farfara) | | 2013-05-12 | 2013-04-17 | Ustaoset (Buskerud, Norway) | |
| White Wagtail (Motacilla alba) | | 2013-05-12 | 2013-04-25 | Ustaoset (Buskerud, Norway) | |
| Bluethroat (Luscinia svecica) | | 2013-05-12 | 2013-05-12 | Ustaoset (Buskerud, Norway) | |
| Barn Swallow (Hirundo rustica) | | 2012-05-27 | 2012-05-25 | Ustaoset (Buskerud, Norway) | |
| Downy Birch (Betula pubescens) | | 2012-05-27 | 2012-05-27 | Ustaoset (Buskerud, Norway) | |
| Small Tortoiseshell (Aglais urticae) | | 2012-05-20 | 2012-04-24 | Ustaoset (Buskerud, Norway) | |
| Bluethroat (Luscinia svecica) | | 2012-05-20 | 2012-04-29 | Ustaoset (Buskerud, Norway) | |
| Redwing (Turdus iliacus) | | 2012-05-20 | 2012-04-27 | Ustaoset (Buskerud, Norway) | |
| Common Cuckoo (Cuculus canorus) | | 2012-05-20 | 2012-05-20 | Ustaoset (Buskerud, Norway) | |
| Small Tortoiseshell (Aglais urticae) | | 2012-05-20 | 2012-05-20 | Ustaoset (Buskerud, Norway) | |
| Bumble-bee (Bombus sp.) | | 2012-05-20 | 2012-05-20 | Ustaoset (Buskerud, Norway) | |
| White Wagtail (Motacilla alba) | | 2012-05-20 | 2012-04-22 | Ustaoset (Buskerud, Norway) | |
| Colt's-foot (Tussilago farfara) | | 2012-05-20 | 2012-04-04 | Ustaoset (Buskerud, Norway) | |
| Chaffinch (Fringilla coelebs) | | 2012-05-20 | 2012-04-09 | Ustaoset (Buskerud, Norway) | |
| Common Cuckoo (Cuculus canorus) | | 2011-06-13 | 2011-05-23 | Ustaoset (Buskerud, Norway) | |
| Downy Birch (Betula pubescens) | | 2011-06-13 | 2011-06-01 | Ustaoset (Buskerud, Norway) | |
| Barn Swallow (Hirundo rustica) | | 2011-06-13 | 2011-06-03 | Ustaoset (Buskerud, Norway) | |
| Common Snipe (Gallinago gallinago) | | 2011-05-08 | 2011-05-08 | Ustaoset (Buskerud, Norway) | |
| Robin (Erithacus rubecula) | | 2011-05-08 | 2011-05-08 | Ustaoset (Buskerud, Norway) | |
| Dwarf Birch (Betula nana) | | 2011-05-08 | 2011-05-08 | Ustaoset (Buskerud, Norway) | |
Sustain.no is provided by the Norwegian Centre for Science Education