Creeping Buttercup
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 35,825
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- Species by county
- Northamptonshire
Species recorded in Northamptonshire
633 species
Northamptonshire — county
Creeping Thistle
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 35,350
Garlic Mustard
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 35,141
Cleavers
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 35,139
Ash
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 35,025
Tapered Drone Fly
- Group
- True flies
- Peak month
- April
- Records since 2000
- 35,005
Sycamore [tree]
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 34,632
Gray Partridge
- Group
- Birds
- Peak month
- May
- Records since 2000
- 34,405
Dangling Swamp-lover
- Group
- True flies
- Peak month
- September
- Records since 2000
- 34,301
Arctic Tern
- Group
- Birds
- Peak month
- May
- Records since 2000
- 33,992
Beautiful Damselfly
- Group
- Dragonflies and damselflies
- Peak month
- June
- Records since 2000
- 33,565
Common frog
- Group
- Amphibians
- Peak month
- March
- Records since 2000
- 33,381
Hazel
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 33,120
Bee Fly
- Group
- True flies
- Peak month
- April
- Records since 2000
- 32,811
Common Loon
- Group
- Birds
- Peak month
- January
- Records since 2000
- 32,765
Pointed Spear-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 32,268
White Clover
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 31,709
Capillary Thread-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 31,536
Yellow-legged Gull
- Group
- Birds
- Peak month
- August
- Records since 2000
- 31,327
Essex Skipper
- Group
- Butterflies and moths
- Peak month
- July
- Records since 2000
- 31,187
Herb-Robert
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 31,116
Great Bittern
- Group
- Birds
- Peak month
- May
- Records since 2000
- 30,985
English ivy, Common ivy, European ivy, Ivy, Needlepoint ivy, Ripple ivy
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 30,860
Green Hairstreak
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 30,308
Daisy
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 29,849
Yorkshire-fog
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 29,834
Cow Parsley
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 29,713
Osprey
- Group
- Birds
- Peak month
- August
- Records since 2000
- 28,915
Blackthorn
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 28,574
Cock's-foot
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 28,426
European otter
- Group
- Mammals
- Peak month
- May
- Records since 2000
- 28,426
Whinchat
- Group
- Birds
- Peak month
- September
- Records since 2000
- 28,416
Elder
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 28,375
Red Campion
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 28,333
Little Owl
- Group
- Birds
- Peak month
- April
- Records since 2000
- 28,128
Selfheal
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 28,118
Two-spot Ladybird
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 28,081
Drone Fly
- Group
- True flies
- Peak month
- August
- Records since 2000
- 28,014
Yarrow
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 27,652
Common Ragwort
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 27,539
Meadowsweet
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 27,430
Sea trout, Brown trout
- Group
- Fish
- Peak month
- August
- Records since 2000
- 27,416
Cattle Egret
- Group
- Birds
- Peak month
- October
- Records since 2000
- 27,274
Wood Avens
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 26,690
Beech
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 26,555
Wood Bristle-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 26,382
Swan's-neck Thyme-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 25,888
Cuckooflower
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 25,770