Table 2

Table 2. Spatial data available for Summit County depicting the known distributions of sensitive and rare species.

Species

Status^a

Activity area

Description

Bald Eagle
  Haliaeetus leucocephalus

FT, ST, G4, S1

winter range

Areas where bald eagles have been observed between 15 November and 1 April.

Boreal toad
  Bufo boreas boreas

FC, FS, SE, G4, S1

occurrences

All locations with documented observation of any life stage of boreal toad (toads, tadpoles, eggs). Locations represented as point data, with 200-m buffer for protection.

Colorado River cutthroat trout
   Oncorhynchus clarki pleuriticus

FS, SC, G4, S3

purity A and B (buffered by
100 m)

Distribution of A and B purity grades of Colorado River cutthroat trout.

Golden Eagle
  Aquila chrysaetos

-

nest sites

Location and buffer zone extending 0.25 mile [0.4 km] around known active or inactive nest. Inactive nests were documented in past 10 years as having been used in nesting attempts, with egg-laying at least.

Northern Goshawk
  Accipiter gentilis

FS, G5, S3

sites

Specific location where a pair of goshawks has at least tried to nest within last five years. Any nest directly tied to courtship, breeding, or brooding behavior is considered active. Buffer zone of 0.25 mile extends around active nest site.

Osprey
  Pandion haliaetus

FS, G5, S3

active nest
sites

Specific location in which a pair of Osprey has at least tried to nest within last five years. Any nest directly tied to courtship, breeding, or brooding behavior is considered active. Buffer zone of 0.25 mile extends around active nest site.

Otter
  Lutra canadensis

SE, G5, S3, S4

overall range
and sightings

An area that encompasses all mapped seasonal activity areas within observed range of population of river otters.

White-tailed Ptarmigan
  Lagopus leucurus altipetens

G5, S4

winter concentration
areas

Part of winter range where bird densities are at least twice those of surrounding winter range. Winter range is defined as locations of birds from late October to late May.

^a Status codes (CNHP 1999):

FC, Listed as a candidate species by USFWS.

FS, Listed as a sensitive species by BLM and/or USFS.

FT, Listed as a threatened species by USFWS.

G4, Ranked by Colorado Natural Heritage Program as apparently secure globally.

G5, Ranked by Colorado Natural Heritage Program as demonstrably secure globally.

S1, Ranked by Colorado Natural Heritage Program as critically imperiled statewide.

S3, Ranked by Colorado Natural Heritage Program as vulnerable statewide.

S4, Ranked by Colorado Natural Heritage Program as apparently secure statewide.

SC, Listed by the Colorado Division of Wildlife as a species of special concern.

SE, Listed by the Colorado Division of wildlife as an endangered species.

ST, Listed by the Colorado Division of wildlife as a threatened species.


Species	Status^a	Activity area	Description

Bald Eagle Haliaeetus leucocephalus	FT, ST, G4, S1	winter range	Areas where bald eagles have been observed between 15 November and 1 April.

Boreal toad Bufo boreas boreas	FC, FS, SE, G4, S1	occurrences	All locations with documented observation of any life stage of boreal toad (toads, tadpoles, eggs). Locations represented as point data, with 200-m buffer for protection.

Colorado River cutthroat trout Oncorhynchus clarki pleuriticus	FS, SC, G4, S3	purity A and B (buffered by 100 m)	Distribution of A and B purity grades of Colorado River cutthroat trout.

Golden Eagle Aquila chrysaetos	-	nest sites	Location and buffer zone extending 0.25 mile [0.4 km] around known active or inactive nest. Inactive nests were documented in past 10 years as having been used in nesting attempts, with egg-laying at least.

Northern Goshawk Accipiter gentilis	FS, G5, S3	sites	Specific location where a pair of goshawks has at least tried to nest within last five years. Any nest directly tied to courtship, breeding, or brooding behavior is considered active. Buffer zone of 0.25 mile extends around active nest site.

Osprey Pandion haliaetus	FS, G5, S3	active nest sites	Specific location in which a pair of Osprey has at least tried to nest within last five years. Any nest directly tied to courtship, breeding, or brooding behavior is considered active. Buffer zone of 0.25 mile extends around active nest site.

Otter Lutra canadensis	SE, G5, S3, S4	overall range and sightings	An area that encompasses all mapped seasonal activity areas within observed range of population of river otters.

White-tailed Ptarmigan Lagopus leucurus altipetens	G5, S4	winter concentration areas	Part of winter range where bird densities are at least twice those of surrounding winter range. Winter range is defined as locations of birds from late October to late May.