Distribution:
The continental distribution of the Northern Leopard Frog is vast and encompasses the southern portion of the eastern and central Canadian provinces, the northern US from Maine south to West Virginia and Ohio and west to Montana and Idaho extending south into Arizona and New Mexico. Additionally, it has been introduced into many regions in western U.S. and eastern Canada. In Nebraska the Northern Leopard Frog occupies the northern half of the state north of a line that approximately follows the Platte River. This species has begun to disappear from numerous localities in the northern part of its continental range. Exact reasons are not understood, but it appears to be susceptible to a deadly chytrid fungus as well as a virus. Nebraska’s populations appear to be stable, but there is anecdotal evidence that the Plains Leopard Frog is expanding its range in Nebraska and possibly increasing competition and hybridization with the Northern Leopard Frog. See the Plains Leopard Frog account for descriptions of hybrids.
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• Occurrence Summary:  
• 3,140
  Records 
• 3,140
  Museum Vouchers 
• 0
  Other Observations 

Some county occurrences indicated below may be too imprecise to map above.
County Breakdown: County Name (# occurrences):
Adams (3); Antelope (21); Arthur (3); Banner (15); Blaine (2); Boone (8); Box Butte (8); Boyd (22); Brown (52); Buffalo (10); Burt (41); Butler (2); Cass (46); Cedar (15); Chase (1); Cherry (168); Cheyenne (69); Colfax (5); Cuming (120); Custer (3); Dakota (18); Dawes (13); Dawson (7); Deuel (1); Dixon (20); Dodge (264); Douglas (22); Dundy (6); Fillmore (4); Franklin (1); Frontier (2); Furnas (2); Gage (17); Garden (21); Garfield (4); Grant (9); Greeley (5); Hall (3); Hamilton (4); Hardin (1); Holt (32); Hooker (7); Howard (3); Jefferson (2); Johnson (10); Kearney (1); Keith (38); Keya Paha (17); Knox (61); Lancaster (869); Lincoln (50); Logan (1); Loup (12); Madison (34); McPherson (1); Merrick (23); Morrill (8); Nance (2); Nemaha (8); Nuckolls (1); Otoe (14); Pawnee (9); Pierce (471); Platte (12); Polk (9); Red Willow (13); Richardson (16); Rock (5); Saline (10); Sarpy (42); Saunders (15); Scotts Bluff (21); Seward (5); Sheridan (8); Sherman (8); Sioux (36); Stanton (58); Thayer (5); Thomas (2); Thurston (9); Unknown (90); Valley (3); Washington (35); Wayne (5); Wheeler (15); York (5);

Natural History:
Meadows and semi-permanent bodies of water are the most common habitat features for the Northern Leopard Frog. They have even been known to inhabit cattle stock tanks. Like the Plains Leopard Frog this species often wanders far from water, but it is less tolerant of dry conditions than Plains Leopard Frogs. Northern Leopard Frogs are active from March through October and begin breeding activities by early to late April. The advertisement call is a long, slow snore followed by two to three chucks. Larvae metamorphose in July and August, but in northern climates they may spend a winter in the larval stage before metamorphosing. Northern Leopard Frogs rest along banks of water bodies and leap into the water when startled, similar to Plains Leopard Frogs. They also make distant trips away from permanent water bodies and inhabit temporary pools when climatic conditions permit.

Occurrence Activity:

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.
# Unique Obervations: ; Range: ; Interquartile range: ;

Remarks: