The artificial nests mimicked the nests of common ground
breeders in the study area, such as Willow Warbler (Phylloscopus
trochilus), Common Chiffchaff (Phylloscopus collybita), Wood Warbler
(Phylloscopus sibilatrix), Wren (Troglodytes troglodytes) and
European Robin (Erithacus rubecula).