Spring & Summer Events for 2019

Join us for these Friends-sponsored events.  Unless otherwise stated, walks meet at the UWM Field Station on Blue Goose Rd.  Wading boots not needed; sandals not recommended.

 Space is limited and pre-registration is requested.  For directions or to register visit www.bogfriends.org (click on the Events tab), send an email to or call 262-675-6844.  Walks are free and are open to the public; a $5 donation is appreciated. PLEASE - NO PETS ALLOWED

Glacial Geology of the Cedarburg Bog Area

Saturday, April 13, 10:00 AM – Noon

Glaciers left a significant imprint on the surface of Southeastern Wisconsin that can be seen in the topography of the Cedarburg Bog both in the uplands and the islands in the bog. Join geologist Bill Kean on a trail walk through the field station property to experience life on the edge (of a glacier from 12,000 years ago).

Waterfowl Spring Migration at Mud Lake by Canoe

Saturday, April 20, 7:00 – 9:00 AM

Mud Lake, the largest surface lake in Ozaukee County, is noted for being a significant staging area for spring migratory waterfowl and other birds associated with lakes and wetlands. On this outing, we will use canoes and kayaks in our search of migrating swans, ducks, geese, and other birds moving through the area. All participants must be of adult age, able to swim, have prior experience with canoeing or kayaking, and be comfortable with birding by boat. Everyone must wear a flotation vest at all times when on the water. Canoes, paddles, and floatation vests will be provided for those who need them. You must let us know in advance if you are bringing your own boat, paddle(s), and flotation vest.  

Group limit: 12.

Suggested donation: $25 per person.

Event leaders: John O'Donnell, Chuck Stebelton and Matt Learned

Start point: Cedar-Sauk Rd Bog entry boardwalk at the Horns Corners Rd. intersection.

Woodcocks and Frogs

Thursday, April 25, 7:30 to 9:30 PM

The annual spring chorus of frogs and the sky dance of woodcocks are unforgettable experiences. Bring a flashlight; boots not needed.

Frogs and Maybe Woodcocks

Thursday, May 2, 7:30 to 9:30 PM

Most Woodcocks are settled on nests, but we’ll listen for the last of the sky-dancers and the late spring species of frogs. Bring a flashlight; boots not needed.

Spring Wildflowers  

Sunday, May 5, 9:00 AM to noon

Witness the exuberance of spring birds, flowers, fern, frogs and more in this wonderful wetland. Naturalist Kate Redmond will lead hikers to explore the Cedarburg Bog in this busy time of year.

Tracking the Arrival of Spring: Phenological Monitoring at the UWM Field Station

Saturday, May 11, 12:30- 3:00 pm.

Gretchen Meyer and Mark Schwartz

Phenology is the study of the timing of events in the life cycles of plants and animals, such as leafing out and flowering of plants or egg laying in birds. We'll take a walk in the woods, talk about long-term phenological monitoring studies at the Field Station, and show you how you can get involved. Sponsored by the Wisconsin Phenological Society. Register by phone or email to the Field Station: email to or call 262-675-6844.

Bird Banding with Tim Vargo

Saturday, May 18, 8:00 to 11:00 AM

Bird banding gives us important information about bird migration. Watch Tim and the crew band migrants and resident birds and see how the data are collected.

May Bird Walk

Saturday, May 25, 6:30- 8:30 AM

Spring migration should still be in progress with the final waves of warblers and vireos and a new wave of flycatchers coming through. Join John O’Donnell and Chuck Stebelton as they search for the regulars and for uncommon birds.


Monday, May 27, 9:00 AM to noon

Wet areas provide the most diverse habitats for plants used by Great Lakes tribes.  Join ethnobotanist Lee Olsen and find out what can be learned from the Indian names. He will also demonstrate utility uses (dyes, cordage, fiber, and construction), reveal medicinal plants, and identify food plants. Bring good hiking shoes and dress for the weather.

June Bird Walk

Saturday, June 8, 6:30- 8:30 AM

Some species are still passing through, and others are settling in for the summer. Join Norma Zehner & Marilyn Bontly to look for some Bog specialties. Bring binoculars if you have them; special footgear not needed.

What’s Up in the Bog

Sunday, June 23, 9:00 AM to Noon

As spring turns to summer, we’ll enjoy the calls of Sandhill Cranes as we see what’s in bloom along the boardwalk with Kate Redmond leading the way.

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