Within the last 6-8 months a local long time (since 1977 at least) hang gliding site was shut down by a group of local citizens with no governmental authority. Kind of odd how this kind of thing can happen. Unfortunately, ignorance and bias seems to be at the heart of this matter.
I'd like to look at the relatively new Mossy Bank Park rules ( as posted online here - http://mossybankpark.com/about.php ).
I quote the relevant section:
7. Camping, trail building, hang gliding, competitive events, scientific experimentation require prior approval. *
NOTE: Due to an actively nesting Bald Eagle, a New York State and federally protected species, in the valley
below, the launching of any aircraft, including drones and hang-gliders, is prohibited from Mossy Bank Park.
While there is a nesting/mating pair of bald eagles in the valley north of the park, the launch is approx. 450 feet above and 1,250 horizontal feet away from the nest. However, that 1,250' is in a straight line to a point directly over the nest. The true distance to the nest is equal to the hypotenuse of a triangle with side A = 450', side B = 1250'.
Doing the math involving A^2 + B^2 = C^2 results in the distance to the nest being 1,329 feet. Interestingly, Google Earth defines the "ground length" distance as being even further at 1,352.3 feet between the nesting tree and the HG launch site in Mossy Bank Park.
Why is any of this important? Well, New York State's Eagle Management Guidelines describe that "helicopters and fix wing aircraft" must stay a quarter mile away from an active bald eagle nest.
Sadly it seems that certain individuals making the rules for the park have a problem with measuring distance. A quarter mile = 1320 feet. The launch is just beyond that distance, which means that any hang glider launching from that point in the park is doing so without violating ANY of NYS's Eagle Management Guidelines.
As far as Federal guidelines go . . . I have an email from the appropriate regional US Fish and Wildlife official stating that hang gliders (being non-powered recreational vehicles, as opposed to helicopters or fix wing aircraft) need only remain 330 feet from the nest site. So, no problem with the Fed.s
Next Point -
Let's consider the language used by the individuals involved with making the Mossy Bank Park rules. It should be noted that they are implicitly defaming hang glider pilots (and PG pilots?) by stating that our flight activities, in some undefined way, threaten our local bald eagles. In doing so, these (rule making and publishing) individuals are defaming ALL hang glider pilots. Any reasonable person reading the park rules can easily assume that hang glider pilots (anywhere?) threaten living examples of our national symbol.
That's both wrong and inexcusable. And it is also damaging and defamatory to participants in our sport.
The Reality -
On a couple occasions I have cooperatively flown in thermals with our local bald eagles. There was no indication, on either occasion, that the eagle was in any way unhappy with my presence. I do not believe that hang gliders in flight pose any danger or threat to bald eagles, either while the eagles are far below in their nest, or while they are in the air flying.*
I've also flown cooperatively with what was either an osprey or a peregrine falcon many years ago above Harris Hill near Elmira, NY. He/she hung out only about 10-20 feet off my wing tip and followed along in the ridge lift. The whole event didn't last much more than 30 seconds to a minute, but it was an amazing experience just the same.
I'm wondering if any of the rest of you have had any positive experiences flying with either bald (or golden) eagles - or other large raptors - at your local sites? If so, I'd like the opportunity to share these with my local park rule makers.
* This claim would, of course, exclude some intentionally aggressive act made by some bird hating (?) HG pilot. Does such a HG pilot even exist?
PS - I have experienced and witnessed aggressive acts by raptors while flying HGs. Both cases involved a red tail hawk that felt it needed to protect its territory along the (lower) secondary ridge in Ellenville, NY. Because of those events I KNOW what the type of things a large raptor may do to show aggression.