The funny part - I use that term loosely - is that the ivory bill was very closely related to pileated wood pecker which is a noisy as fuck bird. There are people out in the swamps of the Singer Tract looking for them like bigfoot hunters. They insist that the bird is very reclusive now.
In soil science, we hand texture, where you rub the soil between two fingers and see how it responds to physical manipulation. There are a few tests: can you roll it into a worm? Does that worm break? How long of a ribbon can you make with it? You do this for each layer (horizon) and pits have a minimum of 3 horizons usually
Anyway, on large scale soil surveys, we can have hundreds to thousands of pits to do. The largest ones I’ve ever done were 1900 pits or so, thus a LOT of hand texturing, and pushing to get them all done.
To speed up this process I started texturing with both hands at the same time; each with a different horizon. Turns out I’m abi-texterous (seriously)