Dear Dan and tweets, I don't know what the regulations are for Marymoor, but according to City of Seattle regulations (SMC 18.12.265), drones are prohibited in Seattle city parks. If you see one, you should report it to park authorities (if any are present), and/or the police (though probably not 911 - usually a drone would not be an emergency), along with any documentation you can provide, such as cellphone photos, license plates, etc.

I don't know of any formal studies, as you requested. However, YouTube does show raptors attacking drones, especially drones that appear to threaten nests. I don't know what nesting owls would do if a drone appeared, but there are nesting Barn Owls at Magnuson, and nesting Cooper's Hawks in various parks. - Connie, Seattle

csidles at constancypress.com <mailto:csidles at constancypress.com>
constancesidles at gmail.com <mailto:constancesidles at gmail.com>



> On Dec 5, 2016, at 12:23 AM, Dan Reiff, PhD <notcalm at comcast.net> wrote:
>
> Hello Tweets,
> I was at Marymoor park Sunday afternoon. A person arrived at the model airplane field and launched a drone about 3:45PM. It traveled at least as far the Pea Patch before I lost track of it.
> Based on time of return, I believe it traveled above much of the park area.
> It made at least three routes around the park including after dark-easy to see then because it had lights- and far beyond the designated area for model airplanes.
> So, I am curious- are there any studies on bird behavior and drone activity?
> I would like to understand if drone activity has any material effect on bird behavior. I do not know, but they are becoming common and I have even seen them being flown in Wilderness areas.
> I have noted that there is now a metal sign at the Snoqualmie Falls overlook that states that drones are not allowed in the area because it is a Peregrine falcon nesting site.
> This not intended to be a negative comment, just a request for information.
> Thanks,
> Dan Reiff
>
> Sent from my iPhone
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