Old School Search Tool

This is what's known as an "index".  If you're old enough to remember real books you'll be familiar with how this works.  The main sections are shown in bold, and all the pages in each section are listed alphabetically.

Amphibians
  Common Frogs
  American Bullfrogs
  Great Crested Newts
  Common Toads
  Midwife Toads
  Natterjack Toads
  Smooth Newts

Bats
  Brandt's Bats
  Brown Long-eared Bats
  Common Pipistrelle Bats
  Daubenton's Bats
  Greater Mouse-eared Bats
  Whiskered Bats

Beetles
  Bloody-nosed
  Cockchafer
  Dor Beetle
  Glow-worms
  Ladybirds
  Rosechafer
  Rosechafer Sightings
  Stag Beetle

Birds
  Arctic Terns
  Barn Owls
  Bewick's Swans
  Birds of Prey Section
  Birds sunbathing
  Blackbirds
  Black-headed Gulls
  Buzzards
  Capercaillie
  Carrion Crows
  Coots
  Cormorants
  Cuckoos
  Eagle Owls
  Gannets
  Golden Eagles
  Goldfinches
  Goosanders
  Great Crested Grebes
  Great Egrets
  Great Spotted Woodpeckers
  Green Woodpeckers
  Grey Herons
  Hen Harriers
  Jays
  Kestrels
  Kingfishers
  Little Egrets
  Little Owls
  Long-eared Owls
  Mallard Ducks
  Mandarin Ducks
  Marsh Harriers
  Mute Swans
  Ospreys
  Owl Section
  Ptarmigan
  Puffins
  Ravens
  Red Grouse
  Red Kites
  Redwings
  Robins
  Rooks
  Short-eared Owls
  Snow Buntings
  Snowy Owls
  Song Thrushes
  Sparrowhawks
  Starlings
  Swallows
  Tawny Owls
  Whooper Swans
  Wood Pigeons
  Wrens

Buried Treasure

Butterflies
  Brimstone Butterflies
  Brown Hairstreak
  Comma Butterflies
  Common Blue Butterflies
  Dingy Skipper Butterflies
  Gatekeeper Butterflies
  Glanville Fritillaries
  Holly Blue Butterflies
  Large Blue Butterflies
  Large Copper Butterflies
  Large Skipper Butterflies
  Large Tortoiseshell Butterflies
  Marbled White Butterflies
  Marsh Fritillaries
  Orange Tip Butterflies
  Peacock Butterflies
  Purple Emperor Butterflies
  Purple Hairstreak
  Red Admiral Butterflies
  Ringlet Butterflies
  Silver-studded Blue Butterflies
  Silver-washed Fritillaries
  Small Copper Butterflies
  Small Skipper Butterflies
  Small Tortoiseshell Butterflies
  Speckled Wood Butterflies
  Swallowtail Butterflies
  White Admiral Butterflies
  Wood White Butterflies

Caterpillars

Creepy-crawlies - see Invertebrates

Damselflies
  Banded Demoiselles
  Beautiful Demoiselles
  Blue-tailed Damselflies
  Common Blue Damselflies

Deer
  Fallow Deer
  Red Deer
  Reindeer
  Roe Deer

Diatoms

Dophins - see Marine Mammals

Dragonflies
  Black Darter Dragonflies
  Black-tailed Skimmer Dragonflies
  Broad-bodied Chaser Dragonfly
  Four-spotted Chaser Dragonfly
  Golden-ringed Dragonflies
  Migrant Hawker Dragonflies

Extinct - wildlife no longer with us

Ferns
  Adder's Tongue Ferns
  Hard Ferns
  Maidenhair Spleenwort Fern
  Bracken

Freshwater Wildlife
  Backswimmers / Water Boatmen
  Freshwater Shrimps
  Pike
  Three-spined Sticklebacks

Fungi Section
  Birch Bracket
  Candle Snuff
  Fly Agaric
  Giant Funnel
  Jew's Ear
  Sulphur Tuft
  Verdigris
  Yellow Stagshorn

Galls Section
  Knopper
  Marble
  Oak Apple
  Robin's Pincushion
  Spangle

Identify It Section

Insect Hotel - how to make one

Invertebrates
  Ants
  Bee - Ashy Mining
  Bee Fly
  Bee - Bumblebees
  Butterflies
  Bee - Carpenter
  Bee - Nomad
  Beetles
  Centipedes
  Crane Flies
  Earthworms
  Earwigs
  Flesh Flies
  Flies
  Gall Wasps
  Grasshoppers
  Harvestmen
  Horse-flies
  Hoverfly - Batman
  Hoverfly - Belted
  Hoverfly - Marmalade
  Hoverfly - Pellucid
  Lacewings
  Ladybirds
  Mayflies
  Millipedes
  Mosquitoes
  Moths
  Praying Mantis
  Roesel's Bush Crickets
  Scorpion Flies
  Slugs
  Snails - Banded
  Snails - Garden
  Snakeflies
  Spiders
  Ticks
  Woodlice

Ladybirds
  2-spot
  7-spot
  14-spot
  16-spot Orange
  22-spot
  24-spot
  Eyed
  Harlequin

Lichens

Mammals
  Badgers
  Bank Voles
  Bats
  Black Squirrels
  Brown Bears
  Brown Hares
  Dormice
  Fallow Deer
  Foxes
  Grey Squirrels
  Hedgehogs
  Irish Hares
  Lynx
  Moles
  Mountain Hares
  Pine Martens
  Polecats
  Red Deer
  Red Squirrels
  Reindeer
  Roe Deer
  Stoats
  Water Voles
  Water Voles - How to find one
  Weasels
  White Squirrels
  Wildcats
  Wolves
  Wood Mouse

Marine Mammals
  Dolphins - Bottle-nosed
  Dophins - Common
  Common Seals
  Grey Seals

Marine Wildlife
  Basking Sharks
  Goose Barnacles
  Limpets
  Mussels
  Seashells
  Starfish

Moss

Moths
  Blood-vein Moth
  Box Moth
  Broad-bordered Bee Hawkmoth
  Buff Tip
  Cinnabar
  Common Footman
  December Moth
  Drinker Moth
  Elephant Hawkmoth
  Elephant Hawkmoth Sightings
  Flower Moth
  Goat Moth
  Hummingbird Hawkmoth
  Jersey Tiger
  Jersey Tiger Moth Sightings
  Lime Hawk-moth
  Old Lady Moth
  Privet Hawkmoth
  Scarlet Tiger
  Snout Moth
  Spectacle Moth
  Spring Usher
  Swallow Prominent
  White Plume Moth

Owls
  Barn Owl
  Eagle Owls
  Little Owls
  Long-eared Owls
  Short-eared Owl
  Snowy Owls
  Tawny Owl

Plants - see Wild Flowers

Photo of the Week

Reptiles
  Adders
  Black Adders
  Common Lizards
  Grass Snakes
  Sand Lizards
  Slow-worms

Snails - see Invertebrates

Spiders
  Angular Orbweb Spiders
  Ant Mimic Spiders
  Black Lace Weaver Spiders
  Bordered Orb-weavers
  Buzzing Spiders
  Cave Spiders
  Cavity Spiders
  Comb-footed Spiders
  Common Crab Spider
  Common Mesh Weavers
  Common Orb Weaver
  Crab Spiders
  Cricket Bat Spiders
  Daddy Long Legs Spiders
  Deadly Spiders
  False Widow Spiders
  False Wolf
  Fencepost Jumping Spider
  Funnel Web Spiders
  Garden Spiders
  Great Raft Spiders
  Green Huntsman Spiders
  Green Orb-weaver Spiders
  House Spiders
  Labyrinth Spiders
  Lace Web Spiders
  Long-jawed Spiders
  Missing Sector Spiders
  Mouse Spiders
  Nursery Web Spiders
  Purse Web Spider
  Sac Spiders
  Spitting Spider
  Spotted Wolf Spider
  Spider Tickling
  Stone Spiders
  Tube Web Spiders
  Walnut Orb-weaver Spiders
  Wasp Spiders
  Water Spider
  Woodlouse Spiders
  Zebra Spiders

Swimming with Dolphins

Tips for Hand Rearing Moths

Trees
  Ash
  Blackthorn
  Common Oak
  Hazel
  Holly
  Horse Chestnut
  Mountain Ash
  Silver Birch
  Spindle
  Why do Leaves Fall in Autumn?

Whose Nuts are These?

Wild Flowers
  5 Easy Ways to Tell Cowslips from Oxlips
  Bird's-foot Trefoil
  Bluebells
  Butterbur
  Cowslips
  Daisies
  Dandelions
  Early Purple Orchids
  Marsh Marigolds
  Mistletoe
  Oxlips
  Primroses
  Pyramidal Orchids
  Snake's-head Fritillaries
  Snowdrops
  Stinging Nettles
  White Dead Nettles
  Wood Anemones

Woodlice
  Ant Woodlice
  Common Pill Woodlice
  Common Rough Woodlice
  Common Shiny Woodlice
  Southern Pill Woodlice