I am not sure of the upcoming event , but it looks like Prospect will be very crowdy and busy likely this weekend. I saw a big setup of 100's of fences just like the Googa Mooga setup and a stage on the Nethermead.. so...if you go birding, go early.... or avoid the Nethermead
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Ok I went to the calender
Its a Nickelodeon event ..read on...
http://www.prospectpark.org/calendar/event/day-of-play
( at least it won't be..LOUD ?) ;)