In message , JennyC
writes
We have been woken up the last few mornings by a strange sound.........

It sounds like an alarm clock, but seems to be at different places in the
garden.

The sound is 4 high pitched tones of about one second each, followed by
about 3 seconds silence, then it starts again.

Anyone got any idea what it might be or where else to ask ??

Starling, imitating an alarm clock? Our all sounded like mobile phones
before they disappeared...

--
Klara, Gatwick basin