Subspecies thumb|Holotype of Chelidon rustica transitiva Hartert (NML-VZ T2057) held at World Museum, National Museums Liverpool|alt=See caption thumb|A European Barn Swallow pauses to rest on a fence post beside a freshwater lake on Lindisfarne.
Subspecies thumb|Holotype of Chelidon rustica transitiva Hartert (NML-VZ T2057) held at World Museum National Museums Liverpool|alt=See caption thumb|A European Barn Swallow pauses to rest on a fence post beside a freshwater lake on Lindisfarne