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Great Horned Owl

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Environmental Learning Center facility

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Outdoor fire pit with Leopold benches, funded by Friends of Retzer

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Facility Welcome Sign, Retzer Nature Center

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Environmental Learning Center facility

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Chestnut Mandibled Toucan

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Fiery Billed Aracari

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Collared Aracari

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Green Violet Ear

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Hummingbird

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Scarlet Macaw

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Blue Crowned Motmot

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Black-Faced Grosbeak

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Yellow Headed Caracara

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Green Violet Ear

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Green Violet Ear

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Blue Gray Tanager

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Green Honeycreeper

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Golden Hooded Tanager

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Buff Throated Saltator & Speckled Tanager

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Blue Crowned Motmot

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Bird Watching

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Squirrel Monkey

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Squirrel Monkey

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Geoffroy’s Tamarin Monkey

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Capuchin Monkeys

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White Faced Capuchin Monkey

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White Faced Capuchin Monkey

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Tarcoles River Crocodiles

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Red Eyed Tree Frog

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Ctenosaur

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Iguanas

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Three Toed Sloth

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Tent Making Bats

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Leaf Cutter Ants

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Hibiscus

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Passion Flower

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Red Flower

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Flora

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Hot Lips Plant

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Shrimp Plant

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Monteverde Cloud Forest

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Arenal Canopy Hike

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Arenal Canopy Tour

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Las Cruces Observation Tower

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Miraflores Locks 2

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Miraflores Locks

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Pan American Bridge

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Panama Viejo Cathedral

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Panama Viejo Corner

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Panama Viejo Street

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Panama Viejo Architecture

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Panama Viejo

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Panama City Church

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Embera Boat

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Embera Village

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Embera Dance

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Embera Dancing

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Embera People

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Sarchi Carreta

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Archi Ox Cart Town

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Cocoa Trees

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Chocolate Tour

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Chocolate Tour

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Zipline

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Zipline Instruction

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Arenal Volcano

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Poas Volcano

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Pacific Sunset

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Sunset Trees

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Sunset Leaves

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Ocean

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Pacific Coast Beach

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Pacific Coast

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Prairie Underground Display – bull snake

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Hidden Treasures

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Promotional and refreshment table at Katie Dahl concert

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Folk singer Katie Dahl performed in an outdoor concert at Retzer

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“Music Under the Stars” event with folk singer Katie Dahl, May 2015

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Children’s Area at Retzer’s Apple Harvest Festival, September 2015

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Friends’ sponsored hayrides at Apple Harvest Festival

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The Friends have recently funded new trail signage at Retzer

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Retzer’s hands-on teaching pond in winter

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Opossum tracks in snow

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Prairie Underground Display – designed by Scott Zoellick

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Prairie Underground Display – ground squirrel

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Friends’ funded trail sign highlighting Aldo Leopold’s legacy

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Prairie Underground Display – weasel and field mouse

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Mouse tracks in snow telling us who’s here

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Indigo Bunting

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Beetle on prairie flower

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Spider with grasshopper in its clutches

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Great blue heron

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Saddlebag dragonfly

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Henslow’s Sparrow

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Milkweed beetles

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Green frog on leaf

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Shield bug on leaf

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Bobolink

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House wren with caterpillar meal

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Swallowtail butterfly

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Dragonfly on bee balm

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Common buckeye

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Red tail hawk

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Horned Lark

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Groundhog

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Canada goose

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Prairie bird

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Muskrat

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Chickadee

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Downy woodpecker

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Cooper’s hawk

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Mallard duck

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House finch

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Merganser duck

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Red Breasted nuthatch

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Male cardinal

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Cedar waxwing

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Robin

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Green Crowned Brilliant

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Friends Of Retzer Nature Center, Inc.
S14 W28167 Madison St.
Waukesha, WI 53188-9501
(262) 896-8007

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Retzer Nature Center Hours:
Nature Center Grounds:
Sunrise to 10 pm (Year-Round)

Learning Center Building:
Monday - Friday: 8 am - 4:30 pm

Saturday: 10 am - 3:00 pm

Sunday: Closed

Retzer Nature Center Website
Retzer Nature Center Map / Location

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Friends of Retzer Nature Center updated their status.

3 weeks ago

Friends of Retzer Nature Center

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© 2025 Friends of Retzer.

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