Facts
- Records since 2000
- 146,912
- Species recorded
- 5,551
- Nation
- Wales
- Type of area
- Unitary Authority
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0)
Most recorded species in Monmouthshire
| # | Species | Group | Peak month | Records here |
|---|---|---|---|---|
| 1 | Canada Goose (canadensis Group) Branta canadensis | Birds | April | 1,778 |
| 2 | Eurasian Blackbird Turdus merula | Birds | May | 1,556 |
| 3 | European Robin Erithacus rubecula | Birds | April | 1,529 |
| 4 | Common Wood-Pigeon Columba palumbus | Birds | April | 1,521 |
| 5 | Carrion Crow Corvus corone | Birds | April | 1,459 |
| 6 | Lesser Horseshoe Bat Rhinolophus hipposideros | Mammals | June | 1,177 |
| 7 | Eurasian Blue Tit Cyanistes caeruleus | Birds | April | 1,130 |
| 8 | Speckled Wood Pararge aegeria | Butterflies and moths | August | 1,044 |
| 9 | Eurasian Wren Troglodytes troglodytes | Birds | April | 1,020 |
| 10 | Common Buzzard Buteo buteo | Birds | April | 989 |
| 11 | Eurasian Magpie Pica pica | Birds | April | 929 |
| 12 | Meadow Brown Maniola jurtina | Butterflies and moths | July | 868 |
| 13 | Great Tit Parus major | Birds | April | 862 |
| 14 | Western Jackdaw Coloeus monedula | Birds | May | 808 |
| 15 | Mallard Anas platyrhynchos | Birds | April | 770 |
| 16 | Common Chiffchaff Phylloscopus collybita | Birds | April | 758 |
| 17 | European Goldfinch Carduelis carduelis | Birds | April | 755 |
| 18 | Common Chaffinch Fringilla coelebs | Birds | April | 713 |
| 19 | Dunnock Prunella modularis | Birds | April | 684 |
| 20 | House Sparrow Passer domesticus | Birds | May | 636 |
| 21 | Common Swift Apus apus | Birds | June | 600 |
| 22 | Rough-stalked Feather-moss Brachythecium rutabulum | Mosses | March | 576 |
| 23 | Indian Balsam Impatiens glandulifera | Flowering plants | August | 576 |
| 24 | Small White Pieris rapae | Butterflies and moths | August | 568 |
| 25 | Cypress-leaved Plait-moss Hypnum cupressiforme | Mosses | March | 565 |
| 26 | Common Feather-moss Kindbergia praelonga | Mosses | March | 559 |
| 27 | Common Blue Polyommatus icarus | Butterflies and moths | August | 555 |
| 28 | Song Thrush Turdus philomelos | Birds | May | 550 |
| 29 | White Wagtail Motacilla alba | Birds | April | 545 |
| 30 | Mandarin Duck Aix galericulata | Birds | April | 522 |
| 31 | Bullhead Cottus gobio | Fish | September | 512 |
| 32 | Barn Swallow Hirundo rustica | Birds | May | 506 |
| 33 | Common Carder Bee Bombus pascuorum | Bees, wasps and ants | August | 488 |
| 34 | Common Raven Corvus corax | Birds | April | 474 |
| 35 | Herring Gull Larus argentatus | Birds | April | 466 |
| 36 | Long-tailed Tit Aegithalos caudatus | Birds | January | 462 |
| 37 | Ringlet Aphantopus hyperantus | Butterflies and moths | July | 458 |
| 38 | Eurasian Blackcap Sylvia atricapilla | Birds | May | 445 |
| 39 | Capillary Thread-moss Rosulabryum capillare | Mosses | March | 436 |
| 40 | Wood Bristle-moss Lewinskya affinis | Mosses | March | 427 |
| 41 | Gatekeeper Pyronia tithonus | Butterflies and moths | July | 425 |
| 42 | Large White Pieris brassicae | Butterflies and moths | July | 423 |
| 43 | Great Spotted Woodpecker Dendrocopos major | Birds | May | 411 |
| 44 | Lesser Black-backed Gull Larus fuscus | Birds | August | 403 |
| 45 | Common Pocket-moss Fissidens taxifolius | Mosses | March | 396 |
| 46 | Large Red Tailed Bumble Bee Bombus lapidarius | Bees, wasps and ants | July | 395 |
| 47 | Pointed Spear-moss Calliergonella cuspidata | Mosses | March | 389 |
| 48 | European Eel Anguilla anguilla | Fish | July | 386 |
| 49 | Meadow Pipit Anthus pratensis | Birds | October | 385 |
| 50 | European Starling Sturnus vulgaris | Birds | May | 385 |
| 51 | Japanese Knotweed Reynoutria japonica | Flowering plants | June | 384 |
| 52 | Forked Veilwort Metzgeria furcata | Liverworts | March | 382 |
| 53 | Green-veined White Pieris napi | Butterflies and moths | July | 379 |
| 54 | Banded Demoiselle Calopteryx splendens | Dragonflies and damselflies | June | 373 |
| 55 | Dilated Scalewort Frullania dilatata | Liverworts | March | 360 |
| 56 | Silky Wall Feather-moss Homalothecium sericeum | Mosses | March | 358 |
| 57 | Swartz's Feather-moss Oxyrrhynchium hians | Mosses | March | 353 |
| 58 | Swan's-neck Thyme-moss Mnium hornum | Mosses | April | 349 |
| 59 | Hart's-Tongue Thyme-moss Plagiomnium undulatum | Mosses | March | 348 |
| 60 | Goldcrest Regulus regulus | Birds | October | 347 |