This is a difficult cache – take note of the D/T rating! Getting the coordinates will take a bit of thought, but so too will getting the cache. I used two ‘tools of the trade’ to set it, and you will probably need to do the same. The T rating reflects the attributes, although I guess you might ignore them and treat this as a T5.
There is nothing at the posted coordinates - they are just another point on the Dingestow Butterfly shape.
To unlock the coordinates you will need to do some bird watching. Look at Gray Catbird, Carolina Wren, Cerulean Warbler, Rose-breasted Grosbeak, Bald Eagle, Hermit Thrush, Common Grackle, Song Sparrow, Mourning Dove, Pygmy Nuthatch, Green Heron, Greater Roadrunner, Baltimore Oriole, Savannah Sparrow and Scissor-tailed Flycatcher.
You can validate your puzzle solution with certitude.
I have written a PDF guide to the Dingestow Butterfly cache Series that might be useful for people working out which puzzles to prioritise. I promise it doesn't contain any Hints though.
https://drive.google.com/file/d/1eCgwQKhpjCcAXxTjjhAUnEFyospeDkON/view?usp=sharing