Hundreds of seabirds are currently arriving at Preston Marina for the breeding season.
Common terns can be spotted on the Docks following their epic journey from West Africa.
Billy Matthews took his long lens down to capture some of the birding action.
The RSPB lists the common tern as being at amber status, meaning it has seen historical population decline.
The common tern is found across large swathes of the UK and only stays for the summer.
Sea swallow is their nickname and they have a buoyant, graceful flight and frequently hover over water before plunging down for fish.
Have you spotted the common terns? Let us know in the comments below or send us your pictures