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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Leander Khil's not so orderly blog on noteworthy bird observations
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 …
Continue reading