AUTHOR=Senner Nathan R. , Morbey Yolanda E. , Sandercock Brett K. TITLE=Editorial: Flexibility in the Migration Strategies of Animals JOURNAL=Frontiers in Ecology and Evolution VOLUME=8 YEAR=2020 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2020.00111 DOI=10.3389/fevo.2020.00111 ISSN=2296-701X