Hoekendijk, Jeroen P. A.Leopold, Mardik F.Cheney, Barbara J.2022-04-062022-04-062021Hoekendijk, J P A, Leopold, M F & Cheney, B J 2021, 'Bottlenose dolphins in the Netherlands come from two sides : across the North Sea and through the English Channel', Journal of the Marine Biological Association of the United Kingdom, vol. 101, no. 5, 0025315421000679, pp. 853-859. https://doi.org/10.1017/S00253154210006790025-3154RIS: urn:FE777DF44F11437226494E1607A3D876ORCID: /0000-0003-4534-5582/work/103685939https://hdl.handle.net/2164/18360Acknowledgements. Many thanks to Jasper Rautenberg, Bert de Haan, Nick van der Ham and Nils van Duivendijk for sharing the initial 2019 sightings through Observation.org, to Steve Truluck (WDC), Charlie Philips (WDC), Wouter Jan Strietman and SOS Dolfijn for rapidly sharing this information, to Tobias Brügging and Het Sop for providing additional images of these sightings, to Rogier Kruger, Bram Fey and Sophie Brasseur for providing additional images of the 2004 sightings, to Guido Keijl (Walvisstrandingen.nl) for his help summarizing the recent strandings, to Lonneke IJsseldijk for providing additional information on the necropsies, to Hans Verdaat (Observation.org), to Geert Aarts for the map of North Holland and to Pauline Gauffier for her help with matching ‘Zafar’. Finally, we thank the editor and two anonymous reviewers for their many constructive and insightful comments and suggestions.71136621engBottlenose dolphincetaceanslong-range movementMoray FirthNorth Seaphoto identificationthe NetherlandsQH301 BiologySupplementary InformationQH301Journal article10.1017/S0025315421000679https://www.scopus.com/pages/publications/85117088724