20 



4i*«»'> 



*"..^ 



25 



■> ■. i: 



• '«v. 







16 



18 



^. 



v:s;'-;a| 



22 



1-4 Great Tit, Parus major L. 5-8 Blue Tit, P. coerixleus L. 9-12 Coal Tit, 



P. ater L. 13-16 Azure Tit, P. cyanus Pall. 17-20 Northern WilIo^y Tit, P. atri- 



capillus borealis Selys. 21-24 Tree Creeper, Certhia familiaris L. 25 Wall Creeper, 



Tichodroma muraria (L.). 26-30 Long tailed Tit, Aegithalos caudatus (L.). 



