In fall 2023 I measured 56 nest tunnels of European Bee-eater / Bienenfresser (Merops apiaster). 10 in Frauenkirchen, Austria and 46 on the Adriatic island of Susak, Croatia. All nests were found in loess cliffs …
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House Martins nesting in woodpecker holes in styrofoam facade
In the breeding season 2022, House Martins / Mehlschwalben (Delichon urbicum) in a colony of roughly 80 natural nests started to occupy and build nests in three holes that a Green Woodpecker / Grünspecht (Picus …
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