unknown bird song - repetitive and insistent

Hello, could anyone help with identifying this somewhat insistent bird song - starts after c 5 secs - many thanks

Not able to see it as hidden in the trees somewhere, but could it be a nuthatch ?

Central Hampshire this morning

https://youtu.be/geI2FzlGClo

  • I agree with you, a Nuthatch. Here's an example from xeno-canto

    Nicolas Martinez, XC538554. Accessible at www.xeno-canto.org/538554.