Dades de l'estació acumulades fins a la sessió seleccionada o per anys, separant adults i joves
| Espècie sessions anuals-> |
2001 7 |
2002 7 |
2003 7 |
2004 7 |
2005 7 |
2006 7 |
2007 7 |
2008 7 |
2009 7 |
2010 7 |
2011 7 |
2012 7 |
2013 7 |
2014 7 |
2015 7 |
2016 7 |
2017 7 |
2018 7 |
2019 7 |
2020 7 |
2021 7 |
2022 7 |
2023 7 |
2024 |
| Accipiter nisus | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Acrocephalus scirpaceus | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | ||
| Aegithalos caudatus | 1 | 2 | 2 | 1 | 2 | 0 | 0 | 0 | 2 | 1 | 2 | 1 | 0 | 0 | 8 | 4 | 0 | 0 | 2 | 2 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 4 | |
| Anthus trivialis | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Caprimulgus europaeus | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Carduelis carduelis | 1 | 2 | 1 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 4 | 5 | |
| Carduelis chloris | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | |
| Certhia brachydactyla | 7 | 1 | 5 | 1 | 2 | 3 | 3 | 1 | 2 | 3 | 4 | 3 | 3 | 1 | 6 | 1 | 3 | 3 | 6 | 0 | 2 | 2 | 3 | 2 | 2 | 3 | 1 | 0 | 2 | 0 | 3 | 1 | 0 | 2 | 5 | 5 | 2 | 1 | 2 | 5 | 5 | 2 | 7 | 2 | 6 | 5 | |
| Cettia cetti | 6 | 2 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 2 | 0 | 1 | 1 | 1 | 2 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 2 | 2 | 1 | 3 | 7 | 3 | 5 | 7 | 1 | 3 | 2 | 10 | 4 | 1 | 1 | 2 | 1 | |
| Coccothraustes coccothraustes | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 3 | 0 | |
| Columba palumbus | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |
| Dendrocopos major | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 1 | 5 | 1 | 1 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 1 | 0 | 0 | 2 | 1 | 1 | 1 | 3 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | ||
| Dendrocopos minor | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| Emberiza cirlus | 5 | 6 | 0 | 0 | 0 | 2 | 3 | 6 | 1 | 3 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 7 | 4 | 0 | 0 | 0 | 4 | 2 | 1 | 1 | 0 | 0 | 4 | 2 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 1 | 3 | 2 | 0 | 1 | 2 | 2 | 4 | 28 | |
| Erithacus rubecula | 9 | 10 | 7 | 11 | 8 | 8 | 7 | 4 | 7 | 2 | 5 | 7 | 9 | 12 | 4 | 2 | 7 | 2 | 5 | 4 | 4 | 5 | 8 | 8 | 1 | 3 | 5 | 6 | 11 | 8 | 6 | 11 | 5 | 11 | 7 | 7 | 9 | 14 | 1 | 4 | 13 | 3 | 6 | 2 | 8 | 2 | |
| Estrilda astrild | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Ficedula hypoleuca | 1 | 0 | |||||||||||||||||||||||
| Fringilla coelebs | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 2 | 0 | 1 | 11 | 1 | 0 | 1 | 0 | 3 | 1 | 2 | 0 | 3 | 0 | 3 | 2 | 2 | 1 | 4 | 0 | 4 | 0 | 1 | 0 | 3 | 0 | 2 | 1 | 0 | 0 | 2 | 4 | 4 | 0 | 3 | 0 | 3 | 0 | |
| Garrulus glandarius | 7 | 5 | 5 | 2 | 2 | 5 | 2 | 0 | 2 | 0 | 4 | 0 | 2 | 0 | 4 | 0 | 2 | 2 | 1 | 0 | 1 | 3 | 3 | 0 | 1 | 0 | 3 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 2 | 2 | 0 | 2 | 0 | 4 | 0 | 1 | 0 | |
| Hippolais polyglotta | 9 | 0 | 4 | 0 | 6 | 2 | 8 | 3 | 5 | 3 | 10 | 4 | 12 | 1 | 8 | 2 | 6 | 3 | 14 | 4 | 18 | 1 | 8 | 3 | 6 | 2 | 13 | 0 | 12 | 8 | 24 | 1 | 20 | 3 | 7 | 3 | 11 | 1 | 11 | 1 | 19 | 7 | 16 | 15 | 21 | 3 | |
| Lanius collurio | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Lanius senator | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Locustella naevia | 1 | 0 | |||||||||||||||||||||||
| Luscinia megarhynchos | 8 | 1 | 10 | 0 | 4 | 0 | 5 | 1 | 6 | 2 | 6 | 0 | 5 | 2 | 8 | 0 | 4 | 2 | 10 | 2 | 10 | 1 | 5 | 2 | 8 | 2 | 8 | 0 | 5 | 0 | 9 | 0 | 7 | 1 | 6 | 1 | 7 | 1 | 9 | 6 | 8 | 6 | 7 | 4 | 5 | 4 | |
| Motacilla alba | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | ||
| Muscicapa striata | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | |
| Oriolus oriolus | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | ||
| Otus scops | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | ||
| Parus ater | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | ||
| Parus caeruleus | 7 | 2 | 8 | 0 | 9 | 5 | 11 | 2 | 7 | 0 | 5 | 5 | 8 | 0 | 12 | 0 | 1 | 4 | 13 | 5 | 5 | 1 | 4 | 7 | 2 | 1 | 2 | 3 | 5 | 6 | 6 | 2 | 1 | 11 | 4 | 12 | 4 | 12 | 8 | 3 | 9 | 10 | 11 | 17 | 4 | 16 | |
| Parus cristatus | 0 | 0 | 3 | 0 | 2 | 1 | 0 | 0 | 1 | 2 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | |
| Parus major | 3 | 4 | 4 | 2 | 9 | 13 | 5 | 1 | 8 | 1 | 3 | 7 | 7 | 2 | 11 | 2 | 4 | 0 | 5 | 5 | 4 | 14 | 4 | 10 | 3 | 7 | 2 | 6 | 12 | 1 | 5 | 2 | 2 | 8 | 6 | 6 | 12 | 7 | 3 | 7 | 3 | 11 | 7 | 7 | 6 | 1 | |
| Passer domesticus | 11 | 10 | 6 | 16 | 8 | 1 | 4 | 26 | 5 | 53 | 14 | 1 | 1 | 0 | 8 | 0 | 3 | 3 | 5 | 5 | 3 | 4 | 9 | 1 | 6 | 0 | 12 | 5 | 12 | 3 | 7 | 0 | 3 | 11 | 9 | 27 | 13 | 35 | 6 | 11 | 6 | 19 | 6 | 21 | 11 | 34 | |
| Petronia petronia | 1 | 0 | |||||||||||||||||||||||
| Phylloscopus bonelli | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 4 | 2 | 5 | 1 | 2 | 2 | 2 | 4 | 2 | 1 | 5 | 6 | |
| Phylloscopus collybita | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Picus viridis | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | ||
| Regulus ignicapilla | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 4 | 1 | 0 | 0 | 2 | 0 | |
| Serinus serinus | 2 | 1 | 1 | 0 | 2 | 1 | 1 | 7 | 3 | 2 | 4 | 8 | 1 | 1 | 1 | 0 | 0 | 0 | 5 | 2 | 1 | 0 | 8 | 1 | 1 | 2 | 4 | 1 | 5 | 5 | 9 | 3 | 3 | 1 | 2 | 0 | 2 | 1 | 5 | 7 | 0 | 0 | 1 | 2 | 21 | 27 | |
| Sitta europaea | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 1 | 1 | 4 | 0 | 1 | |
| Streptopelia turtur | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Strix aluco | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Sturnus vulgaris | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Sturnus vulgaris/unicolor | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Sylvia atricapilla | 7 | 7 | 4 | 7 | 5 | 6 | 7 | 5 | 4 | 3 | 4 | 15 | 11 | 9 | 1 | 4 | 3 | 14 | 7 | 8 | 7 | 36 | 13 | 11 | 7 | 11 | 7 | 6 | 7 | 13 | 20 | 2 | 6 | 8 | 5 | 31 | 23 | 39 | 16 | 31 | 27 | 15 | 6 | 5 | 6 | 2 | |
| Sylvia borin | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Sylvia cantillans | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | ||
| Sylvia communis | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Sylvia melanocephala | 4 | 7 | 0 | 1 | 1 | 5 | 0 | 2 | 0 | 6 | 0 | 1 | 3 | 4 | 0 | 0 | 4 | 3 | 2 | 2 | 1 | 3 | 1 | 14 | 4 | 12 | 7 | 9 | 7 | 4 | 5 | 12 | 2 | 9 | 7 | 12 | 10 | 8 | 5 | 6 | 5 | 11 | 6 | 8 | 10 | 6 | |
| Troglodytes troglodytes | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 2 | 2 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 3 | 0 | 2 | 0 | 0 | 1 | 1 | |
| Turdus merula | 29 | 6 | 18 | 20 | 17 | 11 | 21 | 9 | 23 | 6 | 12 | 5 | 17 | 8 | 10 | 4 | 18 | 15 | 26 | 6 | 22 | 20 | 24 | 6 | 26 | 8 | 15 | 9 | 15 | 4 | 19 | 1 | 7 | 11 | 16 | 18 | 16 | 15 | 17 | 23 | 17 | 5 | 19 | 6 | 16 | 12 | |
| Turdus philomelos | 3 | 0 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Tyto alba | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Upupa epops | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3 | 0 | 1 | 0 | 2 | 0 | 1 | 0 |
Des de l'any 2001 fins l'any 2011 hi havia 10 sessions del Projecte Sylvia. A partir de l'any 2012 es comencen a fer 7 sessions, excepte en zones humides que es fan 6 sessions.