istribution map of siberian chiffchaff Phylloscopus tristis / P. collybita tristis according to IUCN version 2019-2 ; key: Legend: Extant, breeding (#0F0),  Extant, non-breeding (#007FFF)
Made with Natural Earth. Free vetor and raster map data @ naturalearthdata.com. Range map fromBirdLife International 2017. Phylloscopus tristis (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T103844067A111979436. https://dx.doi.org/10.2305/IUCN.UK.2017-1.RLTS.T103844067A111979436.en. Downloaded on 22 August 2019 as visual indicator of distribution.
SanoAK: Alexander Kürthy modification of BirdLife International and Handbook of the Birds of the World (2016) 2016. Phylloscopus tristis. The IUCN Red List of Threatened Species. Version 2021-3, https://www.iucnredlist.org/