WILLOW WARBLER - Phylloscopus trochilus - Groningen, 6 May 2012, The Netherlands
YELLOW-LEGGED GULL - Larus michahellis - Groningen, 6 May 2012, The Netherlands
COMMON SWIFT - Apus apus - Vloeivelden Suikerunie, 7 May 2012, Groningen, The Netherlands
