Download - Frogs and Toads of Minnesota
![Page 1: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/1.jpg)
Frog and Toad Data Collection
![Page 2: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/2.jpg)
Monitoring Protocol: Upon Arrival
1. Enter volunteer and site information on the FrogWatch USA Datasheet
![Page 3: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/3.jpg)
2. Record weather (abiotic) information required on the FrogWatch USA Datasheet
Monitoring Protocol: Upon Arrival
![Page 4: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/4.jpg)
Beaufort Wind ScaleCode Definition Speed (mph)
0 – Calm Smoke rises vertically < 1
1 – Light Air Smoke drifts; slight movement of air
1–3
2 – Light Breeze Leaves rustle; wind felt on face
4–7
3 – Gentle Breeze Leaves and twigs in constant motion
8–12
4 – Moderate Breeze Moves small branches, dust, loose paper
13–17
5 – Fresh Breeze Small trees begin swaying 18–24
![Page 5: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/5.jpg)
Reporting Calls and Intensities Heard
Record any comments under “Additional Notes:”
![Page 6: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/6.jpg)
Monitoring Protocol1. Be quiet for at least 2 minutes before initiating the
monitoring session so frogs and toads acclimate to your presence.
2. Cup hands around your ears and listen quietly for precisely 3 minutes. Use a watch to time this duration accurately.
3. Listen to, identify, and remember all breeding calls occurring in the session.
If the monitoring session is interrupted by noise, restart it, including the 2 minute acclimation period.
![Page 7: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/7.jpg)
Monitoring Protocol: Data Submission
• Volunteers share first four datasheets with chapter coordinators for review
• Submit all datasheets as soon as possible after each monitoring visit to:
FrogWatch USAAssociation of Zoos and Aquariums8403 Colesville Road, Suite 710Silver Spring, MD 20910
![Page 8: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/8.jpg)
Frog and Toad Call Identification
![Page 9: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/9.jpg)
Types of Vocalizations• Advertisement (breeding) call – dominant sound heard
during breeding season.• Aggressive (agonistic) call – a grunt, growl, or trill
sounded by a male when defending a calling site.• Release call – a chirp-like sound accompanied by body
vibrations.• Rain call – Weak version of the advertisement call,
typically following rain events outside the breeding season.
• Alarm call - a loud squeak emitted as a frog attempts to escape a predator.
![Page 10: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/10.jpg)
Factors Influencing Call Frequency• Time of year – have a surge in activity
that will decrease as the season progresses.
• Time of day – peaks after sunset and tapers off around midnight
• Precipitation – activity tends to increase following rain events.
![Page 11: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/11.jpg)
Factors Influencing Call Quality• Temperature – the lower (colder) the
temperature, the slower the call.• Size of individual calling – the larger the
individual, the lower the call.• Acoustic interference – evidence
suggests that frogs may call higher and less frequently.
![Page 12: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/12.jpg)
• There are 14 species of frogs and toads in Minnesota• 3 toads species• 5 tree frog species• 6 true frog species
Minnesota Frog Species
![Page 13: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/13.jpg)
• Green bars indicate calling and breeding activity in Minnesota.• Yellow bars indicates species that are very rare in Minnesota.• Gray area represents FrogWatch seasons
Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.Spring Peeper
Wood Frog
Western Chorus Frog
Boreal Chorus Frog
Bullfrog
Northern Cricket Frog
American Toad
Green Frog
Great Plains Toad
Cope's Gray Treefrog
Northern Leopard Frog
Pickerel Frog
Canadian Toad
Gray Treefrog
Mink Frog
Blanchard's Cricket
![Page 14: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/14.jpg)
Size: 2- 4 inches
Skin coloration is typically brown or reddish. One or two warts are present in each of the large dark blotches on their back. The white chest usually has dark speckles. The parotoid gland is typically separated from the cranial ridge.
American Toad(Anaxyrus americanus)Formerly Bufo americanus
© Jim Harding, MSU
![Page 15: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/15.jpg)
American Toad
© USGS
Habitat: Mowed grassy yards to forested mountains. Wherever there is abundant moisture and insects. Reproduce in virtually any shallow and fish-free water body.
Range: Widespread throughout eastern North America.
![Page 16: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/16.jpg)
American Toad
Voice: A pleasant musical trill lasting 5 to 30 seconds.
Call sounds like a simultaneous whistle and hum.
April– June
© Jim Harding, MSU
![Page 17: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/17.jpg)
Green Frog(Lithobates (Rana) clamitans)
© Rachel Gauza
Size: 2 - 4 inches
Well-developed dorsolateral folds behind eye helps distinguish from similar-looking species.
Coloration is similar to the bullfrog but may be more brown than green.
Breeding males often have yellow-tinged throat.
![Page 18: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/18.jpg)
Green FrogRange: Widespread throughout eastern North America.
Habitat: Lives close to shallow water, springs, streams, swamps, brooks, and edges of ponds and lakes. May be found among rotting debris of fallen trees. © USGS
![Page 19: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/19.jpg)
Green FrogCall: like the twang of a loose banjo string, usually given as a single note.
Burst of sound that when given in rapid succession, will get progressively quieter.
April - September© Jim Harding, MSU
![Page 20: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/20.jpg)
Size: 1 3/8-3 ¼ inches
Dark, masklike patch. Skin coloration is typically brown, but can range from reddish-brown to almost black.
The only North American frog found north of the Arctic Circle.
Habitat: Moist woodlands in eastern areas; open grasslands in western; tundra in the far north. Obligate seasonal pool breeder.
Wood FrogLithobates sylvaticus
© National Park Service
![Page 21: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/21.jpg)
Wood Frog
Range: Widespread throughout northern part of North America
© USGS
![Page 22: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/22.jpg)
Wood Frog
Voice: Series of short raspy quacks
Listen carefully! Call is somewhat muted and does not project or carry very far.
Calling begins as soon as ice starts melting from the edges of ponds.
© Jim Harding, MSU
![Page 23: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/23.jpg)
Size: 1 ¼ - 2 inches
Gray to creamy white. This frog can change colors, so it can be anything from a mottled grayish green or solid green to a gray or creamy white color. The inner thighs on the hind legs of all gray tree frogs are yellow.
Habitat: Shallow wetlands near forests during breeding season. Forests and wooded areas during the summer.
Gray Treefrog(Hyla versicolor)
![Page 24: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/24.jpg)
Gray TreefrogRange: Eastern United States through Minnesota and eastern Texas.
![Page 25: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/25.jpg)
Gray Treefrog
Voice: A musical, birdlike trill. The call is similar to the Cope's gray treefrog, but slower. They may call while perched in tree branches.
May
![Page 26: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/26.jpg)
Cope’s Gray Treefrog(Hyla chrysoscelis)
Size: 1 ¼ - 2 3/8 inches
It looks identical to the gray treefrog (H. versicolor) but differs by call and chromosome count.
Identified by yellow or orange inner legs and the light squarish spots beneath the eyes.
© Dick Bartlett
![Page 27: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/27.jpg)
Cope’s Gray Treefrog
Range: Minnesota South to Texas and across to Florida.
Habitat: Trees and shrubs in or near ponds or other wetlands
© USGS
![Page 28: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/28.jpg)
Cope’s Gray TreefrogCall: A hearty, raspy resonating trill, usually heard in spring and early summer.
Faster trill that is less musical than that of the identical-looking gray treefrog (Hyla versicolor)
Late March - JulyPeaking May - early June © Dick Bartlett
![Page 29: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/29.jpg)
Spring Peeper(Pseudacris crucifer)
Size: ¾ -1 ½ inches
Tan with a dark X on its back.
Identified by dark “X” marking on the back that may appear complete or broken.
© Paul Crump, Houston Zoo
![Page 30: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/30.jpg)
Spring Peeper
© USGS
Range: Common around the Mississippi River and east to the Atlantic Ocean, but lacking in south-central Florida.
Habitat: Wooded areas in or near temporarily flooded ponds and swamps.
![Page 31: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/31.jpg)
Spring PeeperCall: High-pitched ascending whistle, sometimes with a short trill, given once per second, in a multiple-frog chorus: peep, peep, peep.
Agonistic call is a sharp prrreep, often confused with other chorus frog species.
Males call from shrubs and trees near water or tucked low in emergent vegetation.
Calling may begin in December and continues into March/early April
© Jim Harding, MSU
![Page 32: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/32.jpg)
Size: ¾ - 1 ½ inches
Minnesota’s smallest frog.
Three dark stripes running from the head down the back. Color ranges from tan, to grays and reds.
Habitat: Wetlands and fields near trees, cities, Breed in shallow temporary wetlands and ditches
Western Chorus Frog(Pseudacris triseriata)
![Page 33: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/33.jpg)
Western Chorus Frog
Voice: The call of the western chorus frog is a rising creeee that sounds like a fingernail being dragged across a comb.
The western chorus frog sounds very similar to the boreal chorus frog but the pulse rate is longer and slower for the western chorus frog.
March - April
![Page 34: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/34.jpg)
Size: 1 - 1 ½ inches
Very similar in appearance to the western chorus frogs but legs are shorter. Brown, olive, tan, or green with a prominent black stripe on each side from the nostril through the eye and down the sides. Dark stripes down the back
Habitat: Shallow and temporary pools, moist meadows and forests near wetlands
Boreal Chorus Frog(Pseudacris maculata)
![Page 35: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/35.jpg)
Boreal Chorus Frog
Voice: The call of the boreal chorus frog sounds like a fingernail being dragged across a comb.
March - April
![Page 36: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/36.jpg)
Chorus FrogsRange: Across eastern and central North America from Easter Texas Through Northern Canada.
![Page 37: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/37.jpg)
Size: 2-3 inches
The mink frog is blotchy green and brown with a pale underside and a conspicuous tympanum (eardrum). Males may have a bright yellow throat.
Habitat: Mink frogs prefer lakes and rivers with water lilies. Which they use to hide from predators and will hope along the top.
Mink Frog(Rana septentrionalis)
![Page 38: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/38.jpg)
Mink Frog
Range: Across the Northeast part of the United States from Minnesota to Maine and into Canada.
![Page 39: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/39.jpg)
Mink FrogVoice: A rapid cut, cut, cut resembling a hammer striking wood. When mink frogs call in chorus it sounds like horses' hooves on a cobblestone road.
May- July
![Page 40: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/40.jpg)
Size: 2-3.5 inches
Once the most widespread frog in North America.
Leopard frogs receive their name from the leopard like spots on their body.
Habitat: Wet meadows, open fields, and forest edges near wetlands. Will breed in marshes, wetlands, and fishless ponds.
Northern Leopard Frog(Rana pipiens)
© MN DNR
![Page 41: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/41.jpg)
Northern Leopard Frog
Range: Northern Midwest from the Dakotas through Ohio. A separate population ranges in the northern New England states.
![Page 42: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/42.jpg)
Northern Leopard FrogVoice: A long, deep snore lasting several seconds and ending with a chuckling (chuck-chuck-chuck)
Late April- May
© USFWS
Minnesota State Amphibian
![Page 43: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/43.jpg)
FREQUENTLY USED REFERENCES
• Consult local resources (e.g., State Dept. of Natural Resources, State Wildlife Agency, State Atlas, etc.)
• FrogWatch USA Species by State Lists: http://www.aza.org/states-and-territories
• National Amphibian Atlas: http://www.pwrc.usgs.gov/naa
• USGS Frog Call Look Up and Quiz: http://www.pwrc.usgs.gov/frogquiz
• Cornell Lab of Ornithology, Macaulay Library (of Natural Sound): http://macaulaylibrary.org/
• Western Soundscape Archive: http://westernsoundscape.org
• eNature: http://www.enature.com
• AmphibiaWeb: http://amphibiaweb.org
• International Union for the Conservation of Nature Red List - Amphibians: http://www.iucnredlist.org/initiatives/amphibians
• NatureServe Explorer: http://www.natureserve.org/explorer
• USGS Checklist of Amphibian Species and Identification Guide: http://www.nwrc.usgs.gov/sc_armi/frogs_and_toads/index.html
• The Frogs and Toads of North America. Lang Elliott, Carl Gernhardt, and Carlos Davidson. Houghton Mifflin Company, 2009.
![Page 44: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/44.jpg)
Frogs and Toads of the Cabin Regions
![Page 45: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/45.jpg)
Size: 2- 3 ½ inches
Skin coloration is gray, brown, or greenish. It has large blotches which have a strongly contrasting white border. The blotches contain several small warts. The chest is white with no speckles.
Habitat: Damp areas in grasslands and open fields.
Great Plains Toad(Bufo cognatus)
![Page 46: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/46.jpg)
Great Plains ToadRange: The Great Plains region
![Page 47: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/47.jpg)
Great Plains Toad
Voice: Great plains toads produce a loud, metallic trill that can last more than 20 seconds.
Spring- Summer Breeding activity is triggered by warm, heavy rains
![Page 48: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/48.jpg)
Size: 2- 3 ½ inches
The Canadian toad is brown to green with darker brown, reddish, or black spots. Its underside is light with dark flecks, especially on the throat.
Habitat: Shallow wetlands, streams, and roadside ditches. In summer months found near prairie wetlands.
Canadian Toad(Bufo hemiophrys)
![Page 49: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/49.jpg)
Canadian Toad
Range: Northwestern Minnesota through eastern North Dakota up through eastern Alberta and southwestern Manitoba
![Page 50: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/50.jpg)
Canadian Toad
Voice: A clear trill very similar to the American Toad, but lower in pitch and shorter, lasting approximately five seconds.
May- June
![Page 51: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/51.jpg)
Size: 1¾ - 3 inches
The pickerel frog has a pale brown background with brown spots in rows on back. Its underside is light-colored with yellow where the legs and body connect.
Habitat: Slow-moving waters and other damp areas preferably with low, dense vegetation; streams, swamps, and meadows
Pickerel Frog(Lithobates (Rana) palustris)
© Jim Harding, MSU
![Page 52: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/52.jpg)
Pickerel Frog
Range: Throughout the East Coast, except in the very Southeast
© USGS
![Page 53: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/53.jpg)
Pickerel FrogVoice: Steady, low, snore-like croak. Raspy in quality and may last up to 2 seconds. Similar to the leopard frog without the chuckle at the end.
May call in a rolling snore while under water.
April-May
© USFWS
![Page 54: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/54.jpg)
Size: 3 – 8 inches.
The largest frog in North America.
Green skin coloration with yellow throat in males and white in females.
Habitat: Ponds, lakes, slow-moving streams with vegetation. (Must be large enough to avoid crowding).
© Jim Harding, MSU
American BullfrogLithobates catesbianus(formerly Rana catesibana)
![Page 55: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/55.jpg)
© USGS
American BullfrogRange: Widespread throughout the United States. Native to eastern US; introduced in the west.
![Page 56: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/56.jpg)
American Bullfrog
Call: Deep-pitched “jug o'rum” resembling the bellow of a bull.
Call can be heard for more than a quarter mile.
March - September
© Jim Harding, MSU
![Page 57: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/57.jpg)
Size: 5/8 - 1 ½ inches
Among the most agile leapers and can jump surprisingly long distances (5 - 6 feet) for its small size.
Have greatly reduced toe pads, webbed toes, and long legs.
Skin appears warty and coloration is highly variable.
Northern Cricket Frog(Acris crepitans crepitans)
© Jim Harding, MSU
![Page 58: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/58.jpg)
Northern Cricket Frog
Range: Southern New York to Florida panhandle; west to Texas.
Habitat: Sunny ponds of shallow water with good growth of vegetation in the water or on the shore; slow-moving streams with sunny banks.
© USGS
![Page 59: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/59.jpg)
Northern Cricket FrogCall: Sharp, measured clicking,
repeated in rapid succession.
Call reminiscent of two glass marbles
being tapped together or the shaking
of a spray paint can.
March- August© Jim Harding, MSU
![Page 60: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/60.jpg)
Size: .6- 1 ½ inches
They have warty skin that is tan, brown, gray or olive. With a broad light stripe down the back. A dark triangular mark is usually visible between the eyes on top of the head.
Habitat: Open edges of permanent ponds, lakes, bogs, seeps and slow-moving streams and rivers. They prefer open or partially vegetated mud flats, muddy or sandy shorelines, and mats of emergent aquatic vegetation in shallow water. Cannot tolerate any pollutants.
Blanchard’s Cricket Frog(Acris crepitans blanchardi)
![Page 61: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/61.jpg)
Blanchard’s Cricket Frog
Range: Eastern United States. Small populations in Hennepin and Winona Counties. Documented in Chisago County in 1967.
![Page 62: Frogs and Toads of Minnesota](https://reader036.vdocument.in/reader036/viewer/2022062320/55b22529bb61ebd6028b475e/html5/thumbnails/62.jpg)
Blanchard’s Cricket FrogVoice: Metallic clicking call, similar to the sound made when two pebbles are tapped together.
May- July
Very Rare!Classified as Endangered in
Minnesota