Ivy-leaved Toadflax
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 9,640
Species recorded in York
446 species
York — county
Common Liverwort
- Group
- Liverworts
- Peak month
- April
- Records since 2000
- 9,606
Black Swan
- Group
- Birds
- Peak month
- May
- Records since 2000
- 9,552
Migrant Hover Fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 9,218
Japanese Rose
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 9,179
Meadow Crane's-bill
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 9,089
Western conifer seed bug
- Group
- True bugs
- Peak month
- October
- Records since 2000
- 9,062
Reddish snail
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 8,969
Common Field-speedwell
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 8,966
Tawny Mining Bee
- Group
- Bees, wasps and ants
- Peak month
- April
- Records since 2000
- 8,881
Common Cardinal Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 8,863
Greater Bulb-fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 8,814
Common Mallow
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 8,810
Hornet Hoverfly
- Group
- True flies
- Peak month
- August
- Records since 2000
- 8,755
Guelder-rose
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 8,622
Escherichia spec.
- Group
- Microorganisms and protists
- Peak month
- October
- Records since 2000
- 8,428
Common Cockchafer
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 8,262
Black Clock
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 8,199
Rotund disc
- Group
- Molluscs
- Peak month
- April
- Records since 2000
- 8,184
Hedge Mustard
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 8,158
Rainbow weed, Spiked loosestrife, Purple-loosestrife
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 8,145
Bristly Oxtongue
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 8,049
Kentish Snail
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 7,788
Feverfew
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 7,779
Early Mining Bee
- Group
- Bees, wasps and ants
- Peak month
- May
- Records since 2000
- 7,566
Petty Spurge
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 7,495
Norway Maple
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 7,211
Green Cellar Slug
- Group
- Molluscs
- Peak month
- April
- Records since 2000
- 7,133
Bulrush
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 7,052
Raspberry
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 6,958
Green Dock Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 6,957
Dusky Slug
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 6,949
Mottled Sedge
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 6,879
Pea and Bean Weevil
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 6,781
Gorse Shieldbug
- Group
- True bugs
- Peak month
- April
- Records since 2000
- 6,724
Greater Celandine
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 6,651
Spring Epistrophe
- Group
- True flies
- Peak month
- April
- Records since 2000
- 6,574
Bee Orchid
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,503
Gypsywort
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 6,492
Common Rough Woodlouse
- Group
- Crustaceans
- Peak month
- April
- Records since 2000
- 6,413
Purple Toadflax
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,373
Garden Spider
- Group
- Spiders
- Peak month
- September
- Records since 2000
- 6,249
Crosswort
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 6,186
Rustic Sailor Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 6,138
Stinking Iris
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 6,013
Birch catkin bug
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 5,955
Three Spotted Nettle Bug
- Group
- True bugs
- Peak month
- July
- Records since 2000
- 5,901
Parent Bug
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 5,884