Your recordings #1 and #3 really got Bo's attention, especially #3. Bo is my German Shepherd who has lived in amongst the boogers for four years and has accompanied me on MANY, MANY research or observation outings.
He is smart about their ways and knows when it's time to get the He!! outta Dodge. During the time Bo and I lived in the swamps of NE Mississippi, with boogers all around us, he stayed outside while I was at work and he dug himself a den up under the front porch that he hid in when necessary. My neighbors couldn't keep a dog for more than a few weeks or months, but Bo survived.
When I played those recordings, he came to me and got tight up against me and started whining. Those who have been in the field with me know that Bo knows boogers, and your #1 and #3 recordings have boogers on them for sure.
____________________ "There's things in these woods that only God-Almighty Himself knows what they are." - O'neal Sockwell's explanation to me, as to why I needed to carry a gun when I went in the woods on the back of our farm.
