You could read in May several times in the media that there were fewer Common Swifts (Apus apus) and Northern House-Martins (Delichon urbica) this year than in previous years. For example, a conservation organization reported on the results of the “Stunde der Gartenvogel”, which is equivalent the RSPB Big Garden Birdwatch number of these fast-flying… Continue reading Common Swift and Northern House-Martin: a bad year in Germany?