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Creeping ancylid mollusk. Robert Aguilar/Smithsonian Environmental Research Center

invasive

Creeping Ancylid

Mollusk - Ferrissia rivularis

Crow, Dustin Doskocil

invasive

Crow

Bird - Corvus brachyrhynchos

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Greenback Cutthroat Trout. (c) Joseph R Tomelleri

invasive

Federally Threatened, State Threatened

Cutthroat Trout (native)

Fish - Oncorhynchus clarkii ssp

Desert Spiny Lizard, NPS

invasive

Desert Spiny Lizard

Reptile - Sceloporous magister

Cormorant, Wayne D. Lewis

invasive

Double-crested Cormorant

Bird - Phalacrocorax auritus

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Dusky grouse, Hagerty Ryan, USFWS, PD

invasive

Dusky Grouse

Bird - Dendragapus obscurus

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Eastern bluebird, Dan Sudia, USFWS

invasive

Eastern Bluebird

Bird - Sialia sialis

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Collared lizard, Tony Gurzick

invasive

Eastern Collared Lizard

Reptile - Crotaphytus collaris

Eastern Hog-nosed Snake, NPS

invasive

Eastern Hognose Snake

Reptile - Heterodon platirhinos