Mae'r Whws yn credu bod Whw'r Nos yn galw arnynt, ond maen nhw methu gweithio mas o ble ddaw'r swn.The Woohoos think a Night-Time Woohoo is calling them - but where is the sound coming from?
30 o ddyddiau ar ôl i wylio
8 o funudau
Gweld holl benodau Yr Whws
