Baseline Reservoir

Ecosystem Overview

The Baseline Reservoir ecosystem supports 21 documented wildlife species across 15 taxonomic genera. Located in Boulder County, Colorado, this area provides critical habitat with diverse natural communities. The location hosts 5 frequently observed species and 4 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Boulder nearby has 79% more documented species, Baseline Reservoir offers unique wildlife observation opportunities. This location ranks #13 for species diversity among 56 Boulder County County natural areas, placing it in the 77th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#13

Regional Rank

Out of 56 locations

Species Distribution

Very Common5 species

Common6 species

Occasional6 species

Rare4 species

Regional Context

Regional Ranking

#13 of 56 locations

77th percentile for diversity

vs. Boulder

-79% species diversity

Ecosystem Overview

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Biodiversity Highlights

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Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

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Most Common Species

Showing 20 most frequently observed species out of 21 total documented species.

Bucephala clangula

common goldeneye

Very Common30 obs.

Larus delawarensis

Ring-billed Gull

Very Common25 obs.

Mareca strepera

Gadwall

Very Common7 obs.

Mergus merganser

goosander

Very Common5 obs.

Anas platyrhynchos

mallard

Very Common5 obs.

Branta hutchinsii

hutchins’s canada goose

Common4 obs.

Bucephala albeola

Bufflehead

Common3 obs.

Branta canadensis

Canada goose

Common3 obs.

Larus fuscus

lesser black-backed gull

Common2 obs.

Xema sabini

Sabine's gull

Common2 obs.

Gavia immer

great northern loon

Common2 obs.

Aechmophorus occidentalis

Western Grebe

Occasional2 obs.

Fulica americana

American Coot

Occasional1 obs.

Recurvirostra americana

American avocet

Occasional1 obs.

Aechmophorus clarkii

Clark's Grebe

Occasional1 obs.

Podilymbus podiceps

Pied-billed grebe

Occasional1 obs.

Melanitta deglandi

White-winged Scoter

Occasional1 obs.

Melanitta americana

black scoter

Rare1 obs.

Oxyura jamaicensis

Ruddy Duck

Rare1 obs.

Mergus serrator

Red-breasted Merganser

Rare1 obs.

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Most Common Species

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Want the Complete Field Guide?

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Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Baseline Reservoir. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Download a professional PDF field guide featuring all the species found in Baseline Reservoir. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

Species Count

-30%

vs. Regional Average

Compared to 8 nearby locations in Boulder County County, Colorado

Nearby Natural Areas

Boulder

Importance: 0.62

100 species

-79% vs. current

Boulder County

Importance: 0.46

100 species

-79% vs. current

Stearns Lake

Importance: 0.35

12 species

+75% vs. current

Harper Lake

Importance: 0.35

7 species

+200% vs. current

Lake MacIntosh

Importance: 0.35

7 species

+200% vs. current

Finch Lake

Importance: 0.35

5 species

+320% vs. current

Coot Lake

Importance: 0.35

4 species

+425% vs. current

Tantra Lake

Importance: 0.35

4 species

+425% vs. current

About This Comparison

These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Boulder County County.

Regional Comparison

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Regional Ranking

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Species Count

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vs. Regional Average

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Nearby Natural Areas

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About This Comparison

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Regional Comparison

Regional Ranking

Species Count

-30%

vs. Regional Average

Compared to 8 nearby locations in Boulder County County, Colorado

Nearby Natural Areas

Boulder

Importance: 0.62

100 species

-79% vs. current

Boulder County

Importance: 0.46

100 species

-79% vs. current

Stearns Lake

Importance: 0.35

12 species

+75% vs. current

Harper Lake

Importance: 0.35

7 species

+200% vs. current

Lake MacIntosh

Importance: 0.35

7 species

+200% vs. current

Finch Lake

Importance: 0.35

5 species

+320% vs. current

Coot Lake

Importance: 0.35

4 species

+425% vs. current

Tantra Lake

Importance: 0.35

4 species

+425% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#13

Regional Rank

Out of 56 locations

Species Distribution

Very Common5 species

Common6 species

Occasional6 species

Rare4 species

Regional Context

Regional Ranking

#13 of 56 locations

77th percentile for diversity

vs. Boulder

-79% species diversity

Most Common Species

Showing 20 most frequently observed species out of 21 total documented species.

Bucephala clangula

common goldeneye

Very Common30 obs.

Larus delawarensis

Ring-billed Gull

Very Common25 obs.

Mareca strepera

Gadwall

Very Common7 obs.

Mergus merganser

goosander

Very Common5 obs.

Anas platyrhynchos

mallard

Very Common5 obs.

Branta hutchinsii

hutchins’s canada goose

Common4 obs.

Bucephala albeola

Bufflehead

Common3 obs.

Branta canadensis

Canada goose

Common3 obs.

Larus fuscus

lesser black-backed gull

Common2 obs.

Xema sabini

Sabine's gull

Common2 obs.

Gavia immer

great northern loon

Common2 obs.

Aechmophorus occidentalis

Western Grebe

Occasional2 obs.

Fulica americana

American Coot

Occasional1 obs.

Recurvirostra americana

American avocet

Occasional1 obs.

Aechmophorus clarkii

Clark's Grebe

Occasional1 obs.

Podilymbus podiceps

Pied-billed grebe

Occasional1 obs.

Melanitta deglandi

White-winged Scoter

Occasional1 obs.

Melanitta americana

black scoter

Rare1 obs.

Oxyura jamaicensis

Ruddy Duck

Rare1 obs.

Mergus serrator

Red-breasted Merganser

Rare1 obs.

Want the Complete Field Guide?

Get all 21 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.