What's That Sound?

For some weeks now we have been hearing a weird sound - something like an owl hoot but this "boop-boop" call stayed with us even at sea so it was no owl. Besides, there isn't an owl that makes this particular call in this area. It was quite loud at times and eventually we could hear a response call too. After much searching and listening we decided it was coming from the dagger board well and the response was from the other side well. I started searching the internet for marine organisms that made noises and eventually found a recording of the exact sound - it was a gulf toad fish. These fish find a cavity of sorts, (this time obviously our seawind 24's dagger board wells) and then call for a mate. The amazing thing about this though is that we sailed around 200 miles to many different anchorages, through some quite rough water, and the fish just stayed with us.