Native yellow sunflowers in a field
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Graphical banner reads: Scavenger Hunt 2023

Scavenger Hunt at William O'Brien State Park

Please note: The official 2023 season is finished. There are no more weekly drawings. However, you are still welcome to enjoy the hunts.

Welcome! You are tasked with finding "items" from these categories:

  • Trees
  • Wildflowers
  • Arthropods
  • Birds
  • Mushrooms & Lichens
  • Signs of wildlife
  • Amphibians & Reptiles

Happy scavenging!

 

 

Note: The icon below shows # of entries at this park for this year.
Banner reads: trees

Needles: Clusters of five wispy needles (memory device: 5 needles for the 5 letters in WHITE).
Bark: Smooth and green-gray when young; furrowed and gray-brown when older.
Fun Fact: A favorite for bald eagles to nest.

photo: MnDNR

1 / 20

WHITE PINE

Tree - White Pine

Leaves: Same shape as all maples (think Canada flag) but very jagged with deep notches.
Bark: Smooth when young, becomes shaggy with age.
Found: In floodplains and can withstand seasonal floods.

photo: MnDNR

2 / 20

SILVER MAPLE

Tree - Silver Maple

Leaf: Rounded with saw-tooth edge. Leafstalk is flattened, which allow it to "quake" in the breeze.
Try: If you find a leaf try rolling it by its stem with your fingers to feel the way it moves.
Bark: Greenish-white and smooth upper with black splotches. Base is grayish and furrowed.

photos: MnDNR

3 / 20

QUAKING ASPEN

Tree - Quaking Aspen
Banner reads: Wildflowers

Blooms: July-Sept.
Found: In sunny areas.
Petals: Branching clusters with small, yellow flowers
Note: MN has 17 types of goldenrod that look similar with small yellow flowers.

photo: Elfosium / Wikimedia CC

4 / 20

GOLDENROD

Flower - Goldenrod

Blooms: July - September
Found: Along shores or wet meadows.
Petals: The reddest flower in Minnesota.
Fun Fact: Hummingbirds love this plant.

photo: Katja Schulz from D.C. / Wikimedia CC

5 / 20

CARDINAL

Flower - Cardinal Flower

Blooms: May - July
Found: On cliffs and forest edges.
Petals: Red/pink with club-like petals.
Fun Fact: Hummingbirds drink nectar from this flower.

photo: Jelieta Walinski/P&TC photo contest

6 / 20

COLUMBINE

red delicate flower
Banner reads: Arthropods

Appearance: 140 species in MN come in a rainbow of colors.
Dragonfly: Bigger and keep wings spread out when resting.
Damselfly: Smaller and close their wings when resting.
Fun Fact: They can fly upside down, backward, and turn 360° on a dime.

photos: John Wright / Flickr CC; Jim Johnson / iNaturalist CC; Wayne Fidler / iNaturalist CC

7 / 20

DRAGONFLIES / DAMSELFLIES

Three photos showing different species of dragonfly

Found: Near tall grasses in late summer and fall.
Fun Fact: They are jumping phenoms, leaping 20 times their body length, which equates to a human jumping 120 feet.

photo: Will Brown / WikiMedia CC

8 / 20

GRASSHOPPER

Grasshopper in studio setting

Color: Bright orange with black veins.
Found: Flying around wildflowers.
Fun Fact:
They fly down to Mexico before winter begins.

photo: Peter Miller / Flickr CC

9 / 20

MONARCH BUTTERFLY

Monarch butterfly on a pink flower
Banner reads: Birds

Male: All black with red/yellow patch on wings.
Female: Brown/white stripes/patches.
Found: Perching on reeds near water edge.

photos: Akiroq / Pixabay; Andy Reago & Chrissy McClarren / WikiMedia CC

10 / 20

RED-WINGED BLACKBIRD

Appearance: White head that turns white by age 4-5.
Found: Soaring high overhead or perched near top of white pine trees near water.
Fact: A conservation success story--nearing extinction by the 1970s, it rebounded after a ban on DDT pesticides.

11 / 20

BALD EAGLE

 

bald eagle perched in tree

Appearance: Largest woodpecker in MN, about the size of a crow. Red crest.
Found: In the forest, perched on tree trunks where they hammer holes in search of insects to eat.

photo: Will Stenberg / P&TC photo contest

12 / 20

PILEATED WOODPECKER

Bird with red head clinging to tree
Banner reads: Mushrooms and Lichen

Appearance: Semi-circle with brown top and pure white underside.
Found: On tree trunks of hardwood trees and some conifers.
CAUTION: Never eat any mushroom unless knowledgeable.

photos: Cyndy Sims Parr/FlickrCC
George Chernilevsky/Public domain

13 / 20

ARTIST'S CONK

mushroom

Appearance:  Looks like a leaf of lettuce glued to a tree. It's pale yellow-green with wrinkly, wavy lobes.
Found: On the trunk of broad leafed trees such as maples, oaks, etc. and shrubs.
Fun Fact: Some people use it to dye wool.

photo: Björn S.../WikimediaCC

14 / 20

COMMON GREENSHIELD LICHEN

Green lichen
Banner reads: Human Made

Many animals, such as squirrels, raccoons, owls, bats, weasels, porcupines, songbirds, and others, make their homes inside tree holes. The holes can occur from tree decay or broken branches, or else with the help of woodpeckers. While it's rare to see the occupant, let's assume it's a home for someone.

photo: Lorianne DiSabato / Flickr CC

15 / 20

TREE CAVITY
(possible animal den)

Raccoon in a tree hole

Deer hooves (photo) are commonly seen on or near trails. Their hooves make two side-by-side teardrop tracks. Other common prints are from raccoons, rabbits, opossums, and coyotes.

photo: QS Wiki Account, CC0, via Wikimedia Commons

16 / 20

ANIMAL FOOTPRINTS

Deer hoof print in dirt

Lodges (Beaver homes): Look in shallow water for mounds of sticks. Beavers made these by chewing, carrying, and placing each stick in place with mud. The entrance is underwater.
Chew Marks: Beavers gnaw on trees to fell them and use them in building dams. The marks are unique to beavers and one of the best signs of beaver presence.

[photos: Kyle T. Ford/P&TC photo contest; Keith William/FlickrCC]

17 / 20

BEAVER LODGE OR CHEW MARKS

compilation photo of beaver, lodge and chew marks
Banner reads: Amphibians and reptiles

Color: Brown, olive green, or reddish.
Found: Near water or moist areas.
Toads are amphibians that start life as tadpoles and then emerge onto dry land as tiny toadlets about the length of a fingernail.

photo: National Park Service

18 / 20

AMERICAN TOAD

Toad

Snapping turtles are Minnesota’s largest turtle species and weigh up to 45 pounds. They're graceful swimmers who spend most of their time in the water, swimming along the surface. Once overharvested and on the endangered species list from 1984-2013, they have now rebounded. They are docile and avoid humans but will defend themselves if threatened.

photo: USFWS Midwest Region/public domain

19 / 20

SNAPPING TURTLE

Snapping turtle swimming in a lake

20 / 20

WHAT OTHER INTERESTING THINGS DID YOU FIND?

Fill in the following information to be entered in our weekly drawing for a $25 gift card to Minnesota State Parks, which will be mailed to the winner. Weekly winners are randomly selected from entries to ALL participating parks and trails—only one entry per park each summer. However, you are welcome to participate and enter the drawing at multiple parks' this summer.

Please note: For anyone age 12 and under, please enter adult companion's info.

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