[Possum]

On the odd occasions when the sun shines, we sometimes hear a cuckoo calling. Yesterday the sound seemed to be circling quite quickly. I don't think there was time for the cuckoo to fly from one tree to another and not be calling in between. Does anyone know if this is possible?

[HelenVF]

I have just learnt something new today!  I checked in our copy of Birds of the Western Paleartic and it says that cuckoos will call while perched and IN FLIGHT.  I never knew that.

Helen

[sabrina]

Another thing learnt from this site for me 

[Possum]

That's great to know. I thought ! was going mad at the time, but it was the only explanation I could think of.