Distribution:
All specimens shown below are cataloged in their respective collections as Rana pipiens. They are most likely either R. blairi or R. sphenocephala, and are need of examination. This species is known from Great Slave Lake and Hudson Bay, Canada, south to Kentucky and New Mexico, USA (Stebbins 1985, Powell, Conant, and Collins 2016). It has a spotty distribution in the west, where it has been introduced in many localities
It approaches Kansas from the northeast along the Missouri River in Iowa, Nebraska, and Missouri, and western Kansas in east-central Colorado.

(,   Museum Voucher) (,   Observation) (,   Literature Record) (,   iNat Record), (  Fossil)
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Full range depicted by light shaded red area. Export Google Earth (.kml)

• Occurrence Summary:  
• 141
  Records 
• 141
  Museum Vouchers 
• 0
  Other Observations 

Some county occurrences indicated below may be too imprecise to map above.
County Breakdown: County Name (# occurrences):
Anderson (1); Cherokee (21); Cowley (4); Crawford (1); Doniphan (1); Douglas (33); Ellis (10); Franklin (2); Greenwood (1); Labette (4); Leavenworth (2); Linn (2); McPherson (4); Meade (2); Miami (4); Republic (5); Rice (1); Rooks (1); Sherman (4); Trego (2); Unknown (9); Wabaunsee (26); Wilson (1);

Fossil History:
Fossils from the Williams Local Fauna of Rice County (Pleistocene: Illinoian) (Preston 1979, Holman 1984; Holman 1995) are assignable to this complex of frogs.Fossils from the Sandahl Local Fauna of McPherson County (Pleistocene: Illinoian) (Holman 1971; Preston 1979; Holman 1995) are assignable to this complex of frogs.
Fossils from the Kanopolis Local Fauna of Ellsworth County (Pleistocene: Rancholabrean I) (Preston 1979, Holman 1972, Holman 1984; Holman 1995) are assignable to this taxon or Lithobates blairi.
Fossils from the Mount Scott Local Fauna of Meade County (Pleistocene: Illinoian) (Preston 1979, Holman 1987; Holman 1995) are assignable to this complex of frogs.

Natural History:
The Northern Leopard Frog lives in a wide variety of habitats: grassland, brushland,forest, as well as, agricultural lands and in developed areas such as golf courses. It is cold-adapted and can be found up to an elevation of 11,000 feet.It prefers permanent bodies of calm water, with aquatic vegetation.They breed from mid-March to early June. Egg clusters are globular, (2-6 inches in diameter), and often attached to vegetation. Each cluster can contain up to about 6,500 eggs.
The call is snore-like, and interspersed with grunting and chuckling and lasting from 1 to 5 seconds.
They may forage far from water in damp meadows. If frightened on land, it rushes toward water in a zigzag pattern of jumps. Specimens are most easily found at night, with the aid of a flashlight.

Occurrence Activity:
Number of Unique Obervations (=days): 12; Range: 07 Apr to 19 Sep

Chorusing:

Audio recording by Keith Coleman.

Chorusing Phenology: The black outlined dots denote the Julian date (day of the year; 1 January = 1 to 31 December = 365) an observation was made. The thin red line depicts the range of dates between the beginning of the first, and end of the fourth quartile (excluding outliers; Tukey method). The thick light blue bar represents the second and third quartile (interquartile range; the middle 50% of all observations). Only one observation per Julian date is included in the graphs; so a date with multiple observations carries the same weight as a date with only one observation. The vertical bars correspond to the 12 months of the year; January through December.
Number of Unique Obervations: ; Range: ; Interquartile range: ;

Remarks:
The Northen Leopard Frog approaches the borders of Kansas in the northwest (Hammerson, 1996) and the extreme northeast (Johnson, 1997).
Lynch (1978, 1985) reported the Northern Leopard Frog from Otoe County, Nebraska (along the Missouri River), 50 miles north of the northeastern corner of Kansas. Johnson (1987) recorded this amphibian from Atchison County in northwestern Missouri, 20- 30 miles north of the Kansas-Nebraska border. This frog may be discovered in or along the Missouri River valley in Doniphan County, northeastern Kansas.