A willow warbler maybe?

Could this be a willow warbler? Smaller than a Robin. Plain chested. By a pond (London park) alone, very loud singer. 7am. https://vimeo.com/520051324

thank you 

  • Oh now I’m confused - here’s a recording of what I thought was a Wren, and it is too different to be the same bird. What could this be? https://vimeo.com/520064700 

  • That is a Wren but it's an alarm call. Quite different from its song

    This is the typical song of the Wren so you can judge for yourself

    Frank Lambert, XC623588. Accessible at www.xeno-canto.org/623588

  • Oh thank you! I reckon it is a Wren then.