Der Mauersegler,Apus apus (L.), im Sommer 1923 bei Lübeck

• Published in: Journal für Ornithologie
• Main Author: Hagen, Werner
• Format: Article in Journal/Newspaper
• Language: German
• Published: Springer Science and Business Media LLC 1924
• Subjects: Animal Science and Zoology; Apus apus
• Online Access: http://dx.doi.org/10.1007/bf01905389; https://link.springer.com/content/pdf/10.1007/BF01905389.pdf; https://link.springer.com/article/10.1007/BF01905389/fulltext.html; http://link.springer.com/content/pdf/10.1007/BF01905389