Global Red List (JNCC)

Basking Shark

Group

Fish

Peak month

August

Records since 2000

10,066

Signal Crayfish

Group

Crustaceans

Peak month

September

Records since 2000

9,579

Southern Damselfly

Group

Dragonflies and damselflies

Peak month

June

Records since 2000

9,257

Grass Snake

Group

Reptiles

Peak month

May

Records since 2000

8,979

Nursehound

Group

Fish

Peak month

October

Records since 2000

8,795

Ballan Wrasse

Group

Fish

Peak month

July

Records since 2000

8,388

Common adder

Group

Reptiles

Peak month

April

Records since 2000

7,996

Blonde ray

Group

Fish

Peak month

September

Records since 2000

7,660

Scots Pine

Group

Conifers

Peak month

August

Records since 2000

7,517

Goldsinny wrasse, Goldsinny

Group

Fish

Peak month

July

Records since 2000

7,450

Downy Emerald

Group

Dragonflies and damselflies

Peak month

June

Records since 2000

6,965

Harbor porpoise

Group

Mammals

Peak month

July

Records since 2000

6,518

Palmate Newt

Group

Amphibians

Peak month

May

Records since 2000

6,154

Eelgrass

Group

Flowering plants

Peak month

August

Records since 2000

5,884

Imperial Scaldfish

Group

Fish

Peak month

March

Records since 2000

5,486

Cuckoo wrasse

Group

Fish

Peak month

July

Records since 2000

5,240

Freshwater White-clawed Crayfish

Group

Crustaceans

Peak month

September

Records since 2000

4,536

European seabass, Bass

Group

Fish

Peak month

September

Records since 2000

4,443

Common Juniper

Group

Conifers

Peak month

July

Records since 2000

4,287

Rabbit fish

Group

Fish

Peak month

September

Records since 2000

4,170

Pink Sea Fan

Group

Jellyfish, corals and anemones

Peak month

July

Records since 2000

4,164

Great Pond Snail

Group

Molluscs

Peak month

June

Records since 2000

4,111

Minnow

Group

Fish

Peak month

August

Records since 2000

4,107

Small-eyed Ray

Group

Fish

Peak month

September

Records since 2000

4,087

Stone Loach

Group

Fish

Peak month

August

Records since 2000

4,026

White-faced Darter

Group

Dragonflies and damselflies

Peak month

June

Records since 2000

3,960

Undulate Ray

Group

Fish

Peak month

October

Records since 2000

3,705

Blackmouth catshark, Black-mouthed Dogfish

Group

Fish

Peak month

November

Records since 2000

3,526

Lesser emperor

Group

Dragonflies and damselflies

Peak month

July

Records since 2000

3,235

Corkwing wrasse

Group

Fish

Peak month

August

Records since 2000

2,878

Three-spined stickleback

Group

Fish

Peak month

September

Records since 2000

2,526

Western Rustwort

Group

Liverworts

Peak month

July

Records since 2000

2,470

Brook Lamprey

Group

Fish

Peak month

September

Records since 2000

2,399

Rock Cook

Group

Fish

Peak month

June

Records since 2000

2,262

Smooth-hound

Group

Fish

Peak month

November

Records since 2000

2,232

Roach

Group

Fish

Peak month

August

Records since 2000

2,073

Sika Deer

Group

Mammals

Peak month

September

Records since 2000

2,042

Grayling [fish]

Group

Fish

Peak month

September

Records since 2000

2,023

Black-poplar

Group

Flowering plants

Peak month

August

Records since 2000

2,002

Perch

Group

Fish

Peak month

July

Records since 2000

1,962

Wood Ant

Group

Bees, wasps and ants

Peak month

April

Records since 2000

1,703

Tope shark, Tope

Group

Fish

Peak month

November

Records since 2000

1,682

Short-beaked common dolphin

Group

Mammals

Peak month

August

Records since 2000

1,652

Common bottlenose dolphin

Group

Mammals

Peak month

August

Records since 2000

1,558

Leach's Bithynia

Group

Molluscs

Peak month

May

Records since 2000

1,558

Minke whale

Group

Mammals

Peak month

June

Records since 2000

1,556

Hairy Wood Ant

Group

Bees, wasps and ants

Peak month

August

Records since 2000

1,492

Common Goby

Group

Fish

Peak month

September

Records since 2000

1,459