The song of the Nuthatch is a simple series of repeated notes.
Three examples (Apr, Herts).
The song can be a trill.
Tree Creeper song (Apr, Norfolk)
The high-pitched song of the Goldcrest (Apr, Norfolk).
Nuthatch calls (Apr, Herts).
A more extended series of these notes (Apr, Herts).
Squeaky calls by a foraging bird (Apr, Herts).
Barely audible quiet calls between a foraging pair (Apr, Herts).
Long-tailed Tits have several calls including chup, see, see-see-see, and srrra.
A pair at an incomplete nest (Apr, Suffolk).
see-see-see are similar to Goldcrest but always mixed in with the other calls.
The commonly heard Tree Creeper call is a high trill (Dec, Herts).
flight calls at 7kHz at end of recording
A series of rising calls (Apr, Herts).
Goldcrest calls while foraging (Dec, Herts). There are three main call types, a trilled see-see-see, a clear rising syoo and various very short notes.
short notes followed by syoo syoo
This bird in a small tree with another appeared excited, although I couldn't determine why. The notes came in a continuous series (Apr, Norfolk).