Breeding record of Peregrine Falcon Falco peregrinus in Upper Silesia

An adult White-tailed Eagle Haliaeetus albicilla
mobbed by a Peregrine Falco peregrinus
was observed above one of the quarries in
Opole voivodeship on 8.06.2019. The presence
of a territorial Peregrine was confirmed there
on 15.06.2019, no proof of breeding was obtained
however. One year later, on 24.05.2020, four
Peregrine nestlings were found in a Raven Corvus
corax nest, situated on a cliff ledge. Tree
days later there were still three young birds present
on the nest and in its immediate vicinity. It
is the first breeding record of Peregrine Falcon
within historic borders of Upper Silesia after a
gap of almost 100 years.