fangsheath
Well-known member
When I say mechanical, I mean that the sound seems squeaky or whiny but not nasal, and in many cases it fades in and out in a rather random way, not having a sharp beginning and end as is typical of known ivory-bill sounds. See for example the 2 putative kents recorded on 4/11 at 8:56. To me the sound is reminiscient of a swingset or rusty hinge squeak. Without knowing the physical relationships of the recorders to the environment it is difficult to know what can be ruled out. Judging from Appendix 1, many if not all of these kinds of kents were recorded at one station and not at others. This would seem to rule out very distant sounds, but 500 m is pretty wide spacing but it is possible that this recorder was positioned in such a way that it picked up rather distant sounds from a particular direction that the others didn't.
I think a CLO-type analysis of the sounds would be very interesting. Charif has never been explicit about the criteria he has used for accepting or rejecting sounds. One wonders how many lone kent-type sounds, similar to those recorded in Florida, were recorded in Ark. It would also be quite interesting to run the Florida putative kents through his Random Forests program.
I don't remember what format the ARU's use, it may be a propietary format. Even the ARU recordings on the CLO website are not readily downloadable as are the ones posted by Dr. Mennill.
I think a CLO-type analysis of the sounds would be very interesting. Charif has never been explicit about the criteria he has used for accepting or rejecting sounds. One wonders how many lone kent-type sounds, similar to those recorded in Florida, were recorded in Ark. It would also be quite interesting to run the Florida putative kents through his Random Forests program.
I don't remember what format the ARU's use, it may be a propietary format. Even the ARU recordings on the CLO website are not readily downloadable as are the ones posted by Dr. Mennill.