{{tag>eu10018 old}}
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**Landsvale x Bysvale (hybrid)**  //Hirundo rustica x Delichon urbicum//  

[[http://dofbasen.dk/search/result.php?design=table&soeg=soeg&periode=maanedaar&aar_first=1900&aar_second=1994&omraade=stor&stor=591&artdata=art&hiddenart=10018&subspecies=yes&obstype=observationer&species=alle&sortering=dato|DOFBasen:<1995]]