30 May 2021
- Moth trap: Dusky Brocade, Campion, Bright-line Brown-eye, True Lovers’ Knot, Shears, Knot Grass, Flame Shoulder, Clouded-bordered Brindle, Coleophora pyrruhulipinnella
- Common Mallow (first for Coll!)
- Curlew (x4 south)
- Wood Pigeon (x2)
- Arctic Skua
- Harbour Porpoise (x2 from ferry)
- Hen Harrier
- Kestrel
- Lesser Butterfly Orchid
- Peregrine Falcon (x4)
- Hen Harrier
- Dark Green Fritillary
- Black-headed Gull (x12)
- Great Skua
- Corncrake
- Eider (x3 females)
- Grey Seals
- Northern Marsh Orchid
- Arctic Skua
- Manx Shearwaters (x100s moving north)
- Red-breasted Merganser
- Eider
- Twite (family group)
- Pyramidal Orchid
- Eel-grass (Zostera marina)
- Snow Goose (x6)
- Dunlin
- Great Skua
- Arctic Skua
- Lesser Butterfly Orchids
- Water Lobelia
- Pipewort
- Frog Orchids
- Moth trap: Dusky Brocade (24), Grey Scalloped Bar, Poplar Hawkmoth, Clouded-bordered Brindle, Shears, Broom, Small Angle Shades, Knot Grass, Bright-line Brown-eye, Aethes piercei, Elachista argentella
- Cuckoo
- Corncrake
- Little Tern (x2)
- Grasshopper Warbler
- Hen Harrier (female and male)
- Great Skua (x5)
- Red-throated Diver
- Arctic Skua
- Greenfinch
- Bottlenose Dolphin (x4 from ferry)
- Harbour Porpoise (x3 from ferry)
- Red-breasted Merganser (with 8 ducklings)
- Hen Harrier
- Coxcomb Prominent (moth)
- True Lover’s Knot (moth)
- Hen Harrier (male)
- Pebble Prominent (moth – x2)
- Corncrake
- True Lover’s Knot (moth)
- Red-throated Diver
- Great Skua
- Pyramidal Orchid
- Common Blue (butterfly) first of year
- Six-spot Burnet (moth) first of year
- Hen Harrier (x1 female, x1 male)
- Whimbrel
- True Lover’s Knot (moth – x2)
- Narrow-winged Pug (moth – x2)
- Light Knotgrass (moth)
- Otter (x2 juv)
- Heath Rush
- Pheasant (female)
- Hen Harrier (female)
- Red-throated Diver (x2)
- Great Skua
- Red-breasted Merganser (x2)
- White-tailed Eagle
- Hen Harrier (male)
- Ruby Tiger (moth)
- Marsh Arrow-grass
- Distant Sedge
- Adder’s-tongue Fern
- Early Marsh Orchid var. incarnata
- Corncrake
- Sedge Warbler
- Turnstone (x4)
- Dunlin (x3)
- Little Tern (x24)
- Moth trap – Map-winged Swift; Fox moth; Knotgrass (x9); Belted Beauty; Poplar Hawkmoth; Elephant Hawkmoth; Buff Ermine; Light Knotgrass; White Ermine
- Sparrowhawk (male)
- Hen Harrier (x2 male; x1 female)
- Golden Plover
- Mountain Everlasting
- Pipewort (rosettes)
- Aspen
- Royal Fern
- Whitethroat
- Otter
- Arctic Skua
- Manx Shearwater
- Red-breasted Merganser (x1 female)
- Arctic Tern
- Curlew (x2)
- Arctic Skua (2+2)
- Corncrake
- Sand Martin
- Shag
- Fulmar
- Hairy Rock-cress
- Garden Chafers (in abundance)
- Common lizard (on strand line!)
- Sea Squill
- Black-headed Gull (x2)
- Field Pansy
- Early Purple Orchid
- Changing Forget-me-not
- Early Marsh Orchid var coccinea
- Fairy Foxglove
- Hen Harrier
- Great Skua (x2)
- Buzzard (x2)
- Kestrel
- Hairy Sedge (new record for Coll)
- Red-throated Diver
- Arctic Skua (x4)
- Otter
- Great Skua (x2)
- Canada Goose (pr with goslings)
- Shelduck
- Red-breasted Merganser
- Great Northern Diver
- Hen Harrier (male)
- Snow Goose
- Corncrake
- Spring Squill
- Black-headed Gull (x6)
- Early Marsh Orchid var coccinea
- Arctic Skua (x2)
- Sanderling (x5)
- Little Tern (x12+)
- Hairy Rock-cress
- Grey Seal (x4)
- Peregrine (x2)
1 May 2021
- Blyth’s Reed Warbler (1st for Coll – singing from 11am till dusk)
- Arctic Skua
- Spotted Flycatcher
- House Martin
- Common Dolphin (large pod)
- Arctic Tern
- Cinnabar moth
- Common Dolphin (c70)
- Turnstones (x3)
- Shoveler (pair)
- Peregrine (x2)
- Great Skua
- Golden Plover (x5)
- Hen Harrier (x2)
- Moss Carder Bee
- Mackay’s Horsetail
- Hen Harrier (male)
- Snow Goose (x2)
- Corncrake
- Arctic Skua
- Great Skua
- Shelduck (x4)
- Teal (x2)
- Canada Goose (x2)
- Whimbrel (x6)
- Whitethroat
- Spring Squill
- Corncrake
- Little Tern
- Mute Swan (x2)
- Flea Sedge
- Lesser Redpoll (dead)
- Hen Harrier (male)
- Red-breasted Merganser
- Mountain Everlasting
- Hen Harrier (male)
- Arctic Skua
- Boxing Hares
- Pheasant (1 female)
- Dunlin
- Red-throated Diver (x2)
- Great Northern Diver
- Minke Whale
- Otter
- Peregrine
- Cuckoo (x 3 bubbling and croaking)
- Corncrake
- Hen Harrier (1 male, 1 female)
- Woodpigeon
- Whimbrel
- Moth trap – Dark-barred Twin-spot Carpet; Glaucous Shears
- Canada Goose (pair plus 5 goslings)
- Eider (x2)
- Shelduck (x2)
- Hen Harrier (male)
- Bitter Vetchling
- Pignut
- Goldenrod
- Hemlock Water-dropwort
- Green-ribbed Sedge
- Cuckoo (bubbling)
- Shelduck (x2)
- Eider (pair)
- Great Skua
- Blinks
- Bog Stitchwort
- Grasshopper Warbler
- Great Northern Diver (x2)
- Corncrake
- Turnstone
- Short-necked Oil Beetle (x3 female x1 male)
- Spring Squill
- Common Whitlowgrass
- Moth trap – Puss Moth
- Green Hairstreak
- Red Admiral
- Moth trap – Hebrew Character; Red Chestnut; Depressaria radiella
- Chiffchaff
- Little Tern (x c10)
- Great Northern Diver
- Little Grebe
- Red-throated Diver
- Hen Harrier
- Great Skua
- White-beaked Dolphin (x c12)
- Ringed Plover (x c90)
- Dublin (x c60)
- Golden Plover (x8)
- Whimbrel (x3)
- Mossy Saxifrage
- Razorbill
- Great Northern Diver (x2)
- Red-throated Diver
- Arctic Tern (in abundance)
- Little Tern (x2)
- Harbour Porpoise
- Golden Plover (x19)
- Buzzard
- Red-throated Diver (x5)
- Hen Harrier (x4 male, x1 female)
- Grasshopper Warbler
- Corncrake (x4)
- Greenland Wheatear
- White Wagtail
- Sanderling (x3)
- Otter (x3)
- Tutsan
- Hen Harrier
- Great Skua
- Hare’S-tail Cotton-grass
- Rook (v unusual)
- Canada Goose (+ 1 juvenile)
- White Wagtail
- Eider (x3)
- Teal (x2)
- Shelduck (x2)
- Arctic Skua (x2)
- Woodpigeon (x2)
- Whimbrel
- Red-breasted Merganser
- Whinchat
- Great Skua
- Turnstone (x15)
- Eider (pair)
- Great Northern Diver
- Whimbrel (x4)
- Dunlin (x102)
- Ringed Plover (x53)
- White Wagtail (x20)
- Red-breasted Merganser (x3)
- Greenland Wheatear
- Golden Plover
- Twite (x2)
- Barnacle Goose
- Fulmar
- Buzzard (x2)
- Sanderling (x5)
- Common Tern (x2)
- Cornsalad
- Rue-leaved Saxifrage
- Common Whitlowgrass
- Sea Campion (in flower)
- Sea Spleenwort
- Spring Squill
- Barnacle Goose
- Whimbrel (x5)
- Golden Plover (x120)
- Whooper Swan
- White Wagtail (x2)
- White-tailed Eagle
- Little Tern (x25)
- Whimbrel (x4)
- Swallow
- Dunlin (x4)
- Common sandpiper
1 April 2021
- Minke Whale
- Sedge Warbler
- Corncrake (x2 – they’re back!)
- White-fronted Goose (x4)
- Teal (x7)
- Mute Swan (x2)
- Whooper Swan (x3)
- Shoveler
- Gadwall (a pair)
- Tufted Duck
- Whimbrel (x3)
- Scots Lovage (new site)
- Lapwing (chicks everywhere)
- Hen Harrier (x3 males)
- Mossy Saxifrage (locally abundant)
- Pipewort (rosettes developing)
- White-tailed Eagle
- Kestrel
- Hen Harrier (male)
- Rue-leaved Saxifrage
- Mute Swan (x2)
- Hen Harrier (male)
- Common Heath moth (first of year)
- Marsh Violet
- Thale Cress (only Coll location)
- Porpoise (x5)
- Red-throated Diver (x4)
- Cuckoo (new arrivals)
- Hawfinch (major rarity!)
- Twite (x5)
- Barnacle Goose (x120 north)
- Little Terns (x15 new for year)
- Pink Purslane (new for Coll)
- Hen Harrier (male)
- Long-tailed Tit
- Black-headed Gull (x7)
- Eider (x20)
- Whimbrel (x8)
- Shoveler (x4)
- Wigeon (x2)
- Black-tailed Godwit (x14)
- Golden Plover (x40+60)
- Otter (x2)
- Great Northern Diver (x25)
- Willow Warblers (first of the year)
- Green Hairstreak
- Common Seal (x75)
- Golden Plover (x40)
- Dunlin (x6)
- Sanderling (x16)
- Hen Harrier (a pair)
- Golden Plover (x4)
- Sand Martin (at colony)
- Sea Spleenwort
- Shelduck (a pair)
- Hen Harrier (male)
- Golden Plover (x5)
- Arctic Skua (x1)
- White-tailed Eagle (x3)
- Common Scurvy-grass
- Great Northern Diver (x8 calling)
- Black Guillemot (x11)
- Eider (x2 pairs)
- Red-breasted Merganser (x4 pairs)
- Shelduck (x2)
- Canada Goose (2 separate individuals)
- Peregrine (x2)
- Otter (2 separate individuals)
- Hen Harrier (male)
- Eider (2 pairs)
- Barnacle Goose (x150)
- Pink-footed Goose (x70 north)
- Water Rail
- Whooper Swan (x14)
- Wood Pigeon (x7 pairs)
- Whooper Swan (x16)
- Arctic Skua
- Bonxie (x3 in territory)
- Red-throated Diver (2 pairs in territory)
- Hen Harrier (pair)
- Early Whitlowgrass (new location)
- White-tailed Eagle
- Hart’s-tongue Fern (new location)
- Hen Harrier (male)
- Redwing (50+)
- Chiffchaff
- Hen Harrier (ring-tail)
- Merlin (cracking male!)
- Eider
- Great Northern Diver (x3)
- Mute swan
- Shelduck
- Hen Harrier (ring-tail)
- Black Guillemot (x2)
- Rusty-back Fern (local rarity)
- Peacock butterfly (x4)
- White-tailed Eagle (x3)
- Merlin (female)
- Moss Carder Bee (queen)
- Bonxie (x2)
- Minke Whale (our first of the year)
- Manx Shearwaters (north in numbers)
- Hart’s-tongue Fern (new location!)
- White-tailed Eagle (x2)
- Whooper Swan (x16+1)
1 March 2021
- Minke Whale
- Sedge Warbler
- Corncrake (x2 – they’re back!)
- White-fronted Goose (x4)
- Teal (x7)
- Mute Swan (x2)
- Whooper Swan (x3)
- Shoveler
- Gadwall (a pair)
- Tufted Duck
- Whimbrel (x3)
- Scots Lovage (new site)
- Lapwing (chicks everywhere)
- Hen Harrier (x3 males)
- Mossy Saxifrage (locally abundant)
- Pipewort (rosettes developing)
- White-tailed Eagle
- Kestrel
- Hen Harrier (male)
- Rue-leaved Saxifrage
- Mute Swan (x2)
- Hen Harrier (male)
- Common Heath moth (first of year)
- Marsh Violet
- Thale Cress (only Coll location)
- Porpoise (x5)
- Red-throated Diver (x4)
- Cuckoo (new arrivals)
- Hawfinch (major rarity!)
- Twite (x5)
- Barnacle Goose (x120 north)
- Little Terns (x15 new for year)
- Pink Purslane (new for Coll)
- Hen Harrier (male)
- Long-tailed Tit
- Black-headed Gull (x7)
- Eider (x20)
- Whimbrel (x8)
- Shoveler (x4)
- Wigeon (x2)
- Black-tailed Godwit (x14)
- Golden Plover (x40+60)
- Otter (x2)
- Great Northern Diver (x25)
- Willow Warblers (first of the year)
- Green Hairstreak
- Common Seal (x75)
- Golden Plover (x40)
- Dunlin (x6)
- Sanderling (x16)
- Hen Harrier (a pair)
- Golden Plover (x4)
- Sand Martin (at colony)
- Sea Spleenwort
- Shelduck (a pair)
- Hen Harrier (male)
- Golden Plover (x5)
- Arctic Skua (x1)
- White-tailed Eagle (x3)
- Common Scurvy-grass
- Great Northern Diver (x8 calling)
- Black Guillemot (x11)
- Eider (x2 pairs)
- Red-breasted Merganser (x4 pairs)
- Shelduck (x2)
- Canada Goose (2 separate individuals)
- Peregrine (x2)
- Otter (2 separate individuals)
- Hen Harrier (male)
- Eider (2 pairs)
- Barnacle Goose (x150)
- Pink-footed Goose (x70 north)
- Water Rail
- Whooper Swan (x14)
- Wood Pigeon (x7 pairs)
- Whooper Swan (x16)
- Arctic Skua
- Bonxie (x 3 in territory)
- Red-throated Diver (2 pairs in territory)
- Hen Harrier (pair)
- Early Whitlowgrass (new location)
- White-tailed Eagle
- Hart’s-tongue Fern (new location)
- Hen Harrier (male)
- Redwing (50+)
- Chiffchaff
- Hen Harrier (ring-tail)
- Merlin (cracking male!)
- Eider
- Great Northern Diver (x3)
- Mute swan
- Shelduck
- Hen Harrier (ring-tail)
- Black Guillemot (x2)
- Rusty-back Fern (local rarity)
- Peacock butterfly (x4)
- White-tailed Eagle (x3)
- Merlin (female)
- Moss Carder Bee (queen)
- Bonxie (x2)
- Minke Whale (our first of the year)
- Manx Shearwaters (north in numbers)
- Hart’s-tongue Fern (new location!)
- White-tailed Eagle (x2)
- Whooper Swan (x16+1)