Recommended citation
BirdLife International (2024) Species factsheet: Serra do Mar Tyrannulet Phylloscartes difficilis. Downloaded from
https://datazone.birdlife.org/species/factsheet/serra-do-mar-tyrannulet-phylloscartes-difficilis on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/11/2024.