One of the best birthday / Christmas presents I ever received was a subscription to "Outdoor Photography" A superb publication and well worth getting the back-issues for. The magazine content is appropriate for the month of publication, one small section suggests interesting photographic subjects or behaviours observable in that month. It wouldn't be fair to list all the detail here (or legal I imagine) but every month I make a note of their suggestions and here's the list on my Palm to date:-
2002
Velvet Shank (fungi)
ptarmigan
Gooseanders & mergansers (ducks)
Northern Lights
2003
marsh hair moss
Great spotted woodpeckers
Fresh fall of snow
Preening birds
Crossbills
2004
Crow family (rooks magpies etc)
Badgers
Wind sculptured snow drifts
Mistle thrushes
Redshank
Cladonia
2005
Hoar frost
Bewicks swans
Reindeer moss lichen
Coots
Golden Eagles
Wild crab apple
2002
Fern
Nuthatch
Short-eared owls
Cormorant
House spiders
Frost patterns
2003
Map lichen
Ferns
Male Wigeon
Deer
Hedge Sparrow
Beachcombing
2004
Fallen leaves
Feral Goats
Sparrowhawks
Stoats
Grey Partridge
Hedgerow trees
2005
Sea-potato (echinocardium cordatum)
Foxes
red-throated divers
brown hares
white dead nettle
tree buds
2002
Larch trees
Kingfishers
Red deer
Lichen ferns & mosses
2003
Rock Pipit
Common toads
Treecreepers
Flowering gorse
Otters
2004
Dog's mercury
Dog whelks
Common toads
Curlews
Rooks
Brown hares
2005
Grey herons
Daisies
Blue tits
Ring ouzels
Red grouse
primroses
2002
Ospreys
Badger cubs
Cuckoo flower
Red grouse
Leaves of Beech
Moths
2003
Guillemots
Eider ducks
Wheatears
Red squirrels
Bog myrtle
Marsh violet
2004
Blackbirds
Adders
Marsh marigolds
Otters
Lapwings
Reed bunting
2005
Stonechats
Wood sorrel
Speckled wood butterflies
Pasqueflower (pulsatilla pratensis)
Scottish wildcats
Golden Plover
2002
Hawthorn
Black Guillemot
Oystercatchers
Fungi (Morell)
2003
Green tiger beetles
Thongweed
Chickweed wintergreen
Corncrake
Corn buntings
Scottish wildcats
2004
Badger cubs
New beech leaves
Stinging nettles
Cowslips
Green Hairstreak
Shags
2005
Common snipe
Tawny owl
Garden tiger moths
Geranium Robertianum
Maybugs
Lords & ladies (arum maculatum)
2002
Red deer
Vetches
Arctic Terns
Sundew
Salmon leaping
Dragonfly
2003
Small Blue butterfly
Geranium
Stoat
Ptarmigan
Bell Heather
Puffins
2004
Bottle-nosed dolpins
Fir Clubmoss
One-flowered Wintergreen
Common Hawker Dragonfly
Frog Orchid
2005
Common Spotted Orchid
Puss Moth (Cerura vinula)
Cotton Grass, backlit
Scots pines
Sandwich Terns
Red deer
2002
Twinflower (Linnaea Borealis)
Heather
Newts
Grasshoppers
Puffin
Common Blenny
2003
Coral Weed
Drinker Moth
Oysterplant
Slow worms
Puffins
Roe deer
2004
Red deer
Scentless Mayweed
Stinking Iris
Parsley Fern
Dragonflies
Manx Shearwaters
2005
Scottish wood ants (formica aquilonia)
Borage
Fulmars
Harbour porpoise
Osprey
Water Lobelia
2002
Cherry trees
Heather
Grey Herons
Feathers
Rosebay Willowherb
Red deer - Stags
2003
Dustbathing birds
Eyebright
Grayling
Golden Eagle
Pirri-pirri bur
2004
Curlews & Oystercatchers
Seaweeds (wracks)
Hawkmoth (petunia or tobacco)
Sulphur Tuft on rotting log
Cloudberries
Harebell
2005
Elder berries
Curlews
Weasels
Sphagnum moss
Yellow Mountain Saxifrage
2002
Glasswort
Bindweed
Otters
Golden Eagle
Foxes
arum maculatum (cockoo pint)
2003
Puffball fungi
Bilberries
Cetaceans
Rowan berries
Red Admiral butterflies
Oak galls
2004
Fungi
Greenfinches
Dragon & Damselflies
Badgers
Feral goats
Blackthorn (collect rowan blackberry rose cherry crab appple)
2005
Knopper galls
Sitka spruce
Honeysuckle
Amethyst Deceiver fungi
Knot (bird)
Fox cubs
2002
Aspen trees
Rutting Red deer
Sweet Chetnut trees
Liverwort
Rowan
Ringed Povers
2003
Porcelain Fungus
Grey Seals
Goldfinches
Common Limpets
Marram grass
Sparrowhawks
2004
Common Saddle Oyster
Red deer
Common Yellow Russula
Bank Voles
Juniper
Teal
2005
Parasol mushrooms (Lepiota procera)
Lugworm (arenicola marina)
Badgers
Spear thistle (Cirsium vulgare)
Greenfinches
2002
Stags Horn fungus
Red Kites
Purple Sandpipers
Otters
Hawthorn berries
Scots pines
2003
Grey Seal
Peeling Birch bark
Small woodland birds
Polypore fungus (coriolus versicolor)
Greylag
2004
Wood Blewit fungus
Guelder Rose
Sessile or Durmast oak (quercus petraea)
Grey Squirrels
Merlin
Marble gall /Cherry gall
2005
Long-tailed ducks (Clangula hyemalis)
Dog cockles (Glycymeris glycymeris)
Carragheen seaweed (Chondrus crispus)
'Plums and custard' (Tricholomopsis rutilans)
2002
Siskins
Jew's ear (fungus)
Snowflakes falling
Lichen cladonia bellidiflora & floerkeana (red spore producing)
Burdock
Seashells
2003
Kelp
Harts Tongue fern
Bark patterns
Blackbirds
Snow buntings
Cairangorm reindeer herd
2004
Kingfishers
Black headed gulls
Otters
Scots pines
Oak moss (evernia prunastri)
Breadcrumb Sponge
2005
Grey Partridges
Sea Slaters (Ligia oceanica)
Tufted Ducks
Snowdrops
Wigeon
2004
Roe Deer
lichens eg parmeia saxatillis
Ivy
Frosty seeweed
Sparowhawk
Pochard
2005
dog rose (rosa canina)
moving water
dunnocks
french partridges (alectoris rufa)