Below is an overview of all Species that I have photos of in my Ebro Valley and Pyrenees birding tour collection. Click on the images for more about the selected Species.
Chlidonias hybrida
Whiskered tern
Witwangstern
Chroicocephalus genei
Slender-billed gull
Dunbekmeeuw
Gelochelidon nilotica
Gull-billed tern
Lachstern
Ichthyaetus audouinii
Audouin's gull
Audouins meeuw
Larus michahellis
Yellow-legged gull
Geelpootmeeuw
Sterna hirundo
Common tern
Visdief
Sternula albifrons
Little tern
Dwergstern