Those are paper wasps (also known as umbrella wasps). They are not aggressive, and because they eat flower nectar, they are also a beneficial pollinator. Unlike their nasty cousin, the Bald-faced Hornet, these little wasps rarely sting, even when you're right next to their nest. Please leave them be.

Jill

________________________________________
From: tweeters-bounces at mailman1.u.washington.edu [tweeters-bounces at mailman1.u.washington.edu] on behalf of Hank [hank.heiberg at gmail.com]
Sent: Friday, September 19, 2014 6:15 AM
To: Tweeters
Subject: [Tweeters] Warning: wasp nest at Wylie Slough

>
> I should have thought to issue this warning earlier. When Karen and I were on the dike closest to the boat launch at Wylie Slough on 9/10, we found ourselves standing two feet from a wasp nest on a rock on the pond side of the trail. The wasp nest is right at ground level at the end of the dike nearest to the outhouse.
>
> https://www.flickr.com/photos/ljcouple/15018149898/
>
> Hank Heiberg
> Lake Joy
> Carnation, WA
> hankdotheibergatgmaildotcom
>
>
> Sent from my iPad
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