Mysterious nocturnal bird call

I recently moved to Sheffield and i live near a park. Every night around an hour after sunset i hear this amazing bird call for around 5 minutes then not a peep for the rest of the night. For the life of me i cannot find out what it is after searching through countless bird calls! Would someone be kind enough to help identify this call? I would love to know more about it. I managed to record a short clip of it with my phone yesterday: https://clyp.it/ddr30xjg (You'll have to turn your volume high to hear it as my microphone isnt that good)