Our study also highlights the need for greater pterylographic precision in research design of isotope-based studies of avian movement.
Gary R Graves, Seth D Newsome, Marilyn L Fogel 2018, 'Stable hydrogen isotope variability within and among plumage tracts (δ2HF) of a migratorywood warbler.', PLoS ONEhttp://europepmc.org/articles/PMC5882105?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)