Caspian Terns (Hydroprogne caspia) at breeding colony on Ile des Oiseaux in the Parc National du Delta du Saloum, UNESCO World Heritage Site, Senegal, West Africa, Africa

Chinstrap penguin (Pygoscelis antarctica) breeding colony at Baily Head on Deception Island, Antarctica, Southern Ocean, Polar Regions

Migratory Starlings on telephone wires at Thames Estuary. Avian Flu (Bird Flu) could be brought to Britain from Europe by migrating birds.

Migratory Starlings and wood pigeons at Thames Estuary. Avian Flu (Bird Flu) could be brought to Britain from Europe by migrating birds.

Migratory Starlings on telephone wires at Thames Estuary. Avian Flu (Bird Flu) could be brought to Britain from Europe by migrating birds.

Migratory Starlings at Thames Estuary. It is feared that Avian Flu (Bird Flu) could be brought to Britain from Europe by migrating birds.

Caterpillar Congregation. Mindo, Ecuador

redshank, tringa totanus, flocking to reduce heat loss, angus, scotland

Pfronten, Breitenberg mountain at the back, Tannheimer Berge mountain range, Ostallgaeu district, Allgaeu region, Swabia region, Bavaria, Germany, Europe

Pfronten, Breitenberg mountain at the back, Tannheimer Berge mountain range, Ostallgaeu district, Allgaeu region, Swabia region, Bavaria, Germany, Europe