Couple describes strange loud animal vocalization near Beavers Bend State Park witnessed in McCurtain County, Oklahoma

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My wife and I traveled from our home in the Dallas area for a 5 day trip to Hochatown, OK on Oct 26, 2020. It had rained all day and had gone to drizzle by the time we arrived at our cabin around 4:30 pm. We unlocked the cabin and went inside and looked around and then went out right before 5 to start unloading our SUV. My wife grabbed some items and headed inside. Right as she got inside I heard a siren go off in the area of Beavers Bend State Park to warn about water being released from the dam. Immediately I heard a load deep growl. After a few seconds the growl turned into a deep howl. This went on for about thirty seconds and was immediately followed by a loud high pitched scream. This was followed wooooing sounds that lasted about 2 minutes. My wife came out while this was going on. We didn't discuss it as I didn't want to tell her what all I had heard. We grabbed up some items and went into the cabin. Upon coming back outside the sound was gone. I heard the siren go off many mor...