This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
Phylloscopus collybita (Sibley and Monroe 1990, 1993) has been split into P. collybita, P. canariensis, P. ibericus and P. sindianus following AERC TAC (2003) (see Sangster et al. 2002). P. sindianus now includes P. lorenzii previously treated as distinct by Sibley and Monroe (1993).
Crick, H. Q. P.; Dudley, C.; Glue, D.E.; Thomson, D.L. 1997. UK birds are laying earlier. Nature 388: 526.
Crick, H. Q. P.; Sparks, T.H. 1999. Climate change related to egg-laying trends. Nature 399: 423-424.
Croxton, P. J.; Sparks, T. H.; Cade, M.; Loxton, R. G. 2006. Trends and temperature effects in the arrival of spring migrants in Portland (United Kingdom) 1959-2005. Acta Ornithologica 41: 103-111.
Forchhammer, M. C.; Post, E.; Stenseth, N. C. 1998. Breeding phenology and climate. Nature 391: 29-30.
Hüppop, O.; Hüppop, K. 2003. North Atlantic Oscillation and timing of spring migration in birds. Proceedings of the Royal Society of London Series B 270: 233-240.
Jenni, L.; Kery, M. 2003. Timing of autumn bird migration under climate change: advances in long-distance migrants, delays in short-distance migrants. Proceedings of the Royal Society of London Series B 270(1523): 1467-1471.
Mason, C .F. 1995. Long-term trends in the arrival dates of spring migrants. Bird Study 42: 182-189.
Sparks, T. H.; Bairlein, F.; Bojarinova, J. G.; Huppop, O.; Lehikoinen, E. A.; Rainio, K.; Sokolov, L. V.; Walker, D. 2005. Examining the total arrival distribution of migratory birds. Global Change Biology 11: 22-30.
Sparks, T. H.; Huber, K.; Bland, R. L.; Crick, H. Q. P.; Croxton, P. J.; Flood, J.; Loxton, R. G.; Mason, C. F.; Newnham, J.A.; Tryjanowski, P. 2007. How consistent are trends in arrival (and departure) dates of migrant birds in the UK? Journal of Ornithology 148: 503-511.
Tøttrup, A. P.; Thorup, K.; Rahbek, C. 2006. Patterns of change in timing of spring migration in North European songbird populations. Journal of Avian Biology 37: 84-92.
Zalakevicius, M.; Bartkeviciene, G.; Raudonikis, L.; Janulaitis, J. 2006. Spring arrival response to climate change in birds: a case study from eastern Europe. Journal of Ornithology 147: 326-343.
Further web sources of information
Detailed species account from Birds in Europe: population estimates trends and conservation status (BirdLife International 2004)
Text account compilers
Butchart, S., Ekstrom, J.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2016) Species factsheet: Phylloscopus collybita. Downloaded from http://www.birdlife.org on 29/09/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/09/2016.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
Additional resources for this species
|Current IUCN Red List category||Least Concern|
|Family||Sylviidae (Old World warblers)|
|Species name author||(Vieillot, 1817)|
|Population size||200000000-700000000 mature individuals|
|Distribution size (breeding/resident)||17,000,000 km2|
|Links to further information|
- Additional Information on this species|
- 2015 European Red List assessment