Noises in the night.

A few nights ago I heard splashing in the river...it sounded very close, much closer than the river itself. It sounded like waves washing on the shore. I went to the door  to listen wondering what it could be since I had heard no boat go past...and then I heard the 'breaths'... It was a large pod of dolphins swimming up river, possibly chasing fish into the shallows to catch them...it was too dark to see them... but their exhalations/ inhalations gave them away.As well as the constant chittering of crickets occasionally there is, outside our bedroom windows, a loud flapping noise of large wings followed by the crashing of what sounds like an uncoordinated landing amongst the banana tree fronds...fruit bats are checking out if the bananas are ripe yet.For the last two nights, both of which have been restless for me, a lonely Barking Tree Frog has called out all night. It sounds like a cross between an old wooden soccer rattle and someone saying 'eh?'....every  4 seconds. It is obviously waiting for an answer to it's call but it would seem to be the only one around...I reckon all the others have been killed by tired insomniacs and if I had the energy I would go and find this one and chuck into into the sugar cane. I can only hope it gets a sore throat and gives up it's search as a bad job. If only frogs were on ' Tinder' ...more people might have more peaceful nights!