Theo Locher: Grote Stern - Sandwich Tern - Sterna sandvicensis-5459
Theo Locher: Grote Stern - Sandwich Tern - Sterna sandvicensis - close up-5126
Theo Locher: Grote Stern - Sandwich Tern - Sterna sandvicensis-5488
Theo Locher: Grote Stern - Sandwich Tern - Sterna sandvicensis-5480
Theo Locher: Visdief - Common Tern - Sterna hirundo met Rivierprik - Lampetra fluviatilis - wide-3994
Theo Locher: Visdief - Common Tern - Sterna hirundo met Rivierprik - Lampetra fluviatilis-3994
Theo Locher: Visdief - Common Tern - Sterna hirundo-2404
Theo Locher: Visdief - Common Tern -9614