Taxon - Links and literature
subspecies
Delichon urbica urbica (Linnaeus, 1758)
IOC World Bird List 3.3 [as Delichon urbicum urbicum (Linnaeus, 1758)]Gill F. & Donsker D.: IOC World Bird List [http://www.worldbirdnames.org/]
Data retrieved on: 2013/04/11
Clements, J. F.: eBird/Clements checklist of birds of the world 6.7 [http://www.birds.cornell.edu/clementsche...], Cornell Lab of Ornithology [as Delichon urbicum urbicum]Data retrieved on: 2013/04/10
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