The common tern (Sterna hirundo)
Nesting on gravel bars, the common tern (Sterna hirundo) is a bird that lives on the rivers. Elegant flyer, it hunts by diving into the water.
Tag: gravel
Gravel and sand bars – where everything begins
Gravel and sand bars are the layers of the sediment in the riverbed. It is not only the barren sediment; this is precious habitat for specialized animals and plants.
