Records of national rarities are considered by the British Bird Rarities Committee (BBRC). A list of species, on the Kent list, which are assessed by this committee, is shown below. Details on how to submit a record to the committee can be found here.
| Red-breasted Goose | Branta ruficollis | |
| Lesser White-fronted Goose | Anser erythropus | |
| King Eider | Somateria spectabilis | |
| Hooded Merganser | Lophodytes cucullatus | |
| Ferruginous Duck | Aythya nycora | |
| Canvasback | Aythya valisineria | |
| Lesser Scaup | Aythya affinis | |
| Blue-winged Teal | Anas discors | |
| American Black Duck | Anas rubripes | |
| Pied-billed Grebe | Podilymbus podiceps | |
| Great Bustard | Otis tarda | |
| Little Bustard | Tetrax tetrax | |
| Great Spotted Cuckoo | Clamator glandarius | |
| Pallas's Sandgrouse | Syrrhaptes paradoxus | |
| Oriental Turtle Dove | Streptopelia orientalis | |
| American Coot | Fulica americana | |
| Little Crake | Porzana parva | |
| Baillon's Crake | Porzana pusilla | |
| Pacific Golden Plover | Pluvialis fulva | |
| Sociable Plover | Vanellus gregarius | |
| White-tailed Plover | Vanellus leucurus | |
| Tibetan Sand Plover | Anarhynchus atrifrons/pamirensis/schaefe | |
| Greater Sand Plover | Anarhynchus leschenaultii | |
| Kentish Plover | Anarhynchus alexandrinus | |
| Long-billed Dowitcher | Limnodropus scolopaceus | |
| Great Snipe | Gallinago media | |
| Terek Sandpiper | Xenus cinereus | |
| Spotted Sandpiper | Actitis macularius | |
| Wilson's Phalarope | Phalaropus tricolor | |
| Solitary Sandpiper | Tringa solitaria | |
| Marsh Sandpiper | Tringa stagnatilis | |
| Greater Yellowlegs | Tringa melanoleuca | |
| Sharp-tailed Sandpiper | Calidris acuminata | |
| Broad-billed Sandpiper | Calidris falcinellus | |
| Stilt Sandpiper | Calidris himantopus | |
| Baird's Sandpiper | Calidris bairdii | |
| Semi-palmated Sandpiper | Calidris pusilla | |
| Least Sandpiper | Calidris minutilla | |
| Cream-coloured Courser | Cursorius cursor | |
| Oriental Pratincole | Glareola maldivarum | |
| Black-winged Pratincole | Glareola nordmanni | |
| Collared Pratincole | Glareola pratincola | |
| Tufted Puffin | Fratercula cirrhata | |
| Sooty Tern | Onychoprion fuscatus | |
| Bridled Tern | Onychoprion anaethetus | |
| Caspian Tern | Hydroprogne caspia | |
| Gull-billed Tern | Gelochelidon nilotica | |
| Whiskered Tern | Chlidonias hybrida | |
| Lesser Crested Tern | Thalasseus bengalensis | |
| Forster's Tern | Sterna forsteri | |
| Ross's Gull | Rhodostethia rosea | |
| Ivory Gull | Pagophila eburnea | |
| Slender-billed Gull | Chroicocephalus genei | |
| Bonaparte's Gull | Chroicocephalus philadelphia | |
| Laughing Gull | Larus atricilla | |
| Audouin's Gull | Ichthyaetus audouinii | |
| Black-browed Albatross | Thalassarche melanophris | |
| Black Stork | Ciconia nigra | |
| Brown Booby | Sula leucogaster | |
| Little Bittern | Ixobrychus minutus | |
| Green Heron | Butorides virescens | |
| Chinese Pond Heron | Ardeola bacchus | |
| Squacco Heron | Ardeola ralloides | |
| Common Nighthawk | Chordeiles minor | |
| White-throated Needle-tail | Hirundapus caudacutus | |
| Pallid Swift | Apus pallidus | |
| Tengmalm's Owl | Aegolius funereus | |
| Scops Owl | Otus scops | |
| Snowy Owl | Bubo scandiacus | |
| Pallid Harrier | Circus macrourus | |
| Roller | Coracias garrulus | |
| Blue-cheeked Bee-eater | Merops persicus | |
| Lesser Kestrel | Falco naumanni | |
| Gyrfalcon | Falco rusticolus | |
| Acadian Flycatcher | Empidonax virescens | |
| Red-eyed Vireo | Vireo olivaceus | |
| Masked Shrike | Lanius nubicus | |
| Lesser Grey Shrike | Lanius minor | |
| Nutcracker | Nucifraga caryocatactes | |
| Crested Lark | Galerida cristata | |
| Calandra Lark | Melanocorypha calandra | |
| Booted Warbler | Iduna caligata | |
| Eastern Olivaceous Warbler | Iduna pallida | |
| Aquatic Warbler | Acrocephalus paludicola | |
| Paddyfield Warbler | Acrocephalus agricola | |
| Great Reed Warbler | Acrocephalus arundinaceus | |
| Savi's Warbler | Locustella luscinioides | |
| Crag Martin | Ptyonoprogne rupestris | |
| American Cliff Swallow | Petrochelidon pyrrhonota | |
| Western Bonelli's Warbler | Phylloscopus bonelli | |
| Hume's Warbler | Phylloscopus humei | |
| Iberian Chiffchaff | Phylloscopus ibericus | |
| Asian Desert Warbler | Sylvia nana | |
| Sardinian Warbler | Sylvia melanocephala | |
| Eastern Subalpine Warbler | Curruca cantillans | |
| Short-toed Treecreeper | Certhia brachydactyla | |
| Swainson's Thrush | Catharus ustulatus | |
| Black-throated Thrush | Turdus atrogularis | |
| Dusky Thrush | Turdus eunomus | |
| Eyebrowed Thrush | Turdus obscurus | |
| Rufous-tailed Scrub Robin | Cercotrichas galactotes | |
| Thrush Nightingale | Luscinia luscinia | |
| Collared Flycatcher | Ficedula albicollis | |
| Rock Thrush | Monticola saxatilis | |
| Siberian Stonechat | Saxicola maurus | |
| Desert Wheatear | Oenanthe deserti | |
| Pied Wheatear | Oenanthe pleschanka | |
| Isabelline Wheatear | Oenanthe isabellina | |
| Alpine Accentor | Prunella collaris | |
| Eastern Yellow Wagtail | Motacilla tschutschensis | |
| Blyth's Pipit | Anthus godlewskii | |
| Tawny Pipit | Anthus campestris | |
| Red-throated Pipit | Anthus cervinus | |
| Pine Grosbeak | Pinicola enucleator | |
| Trumpeter Finch | Bucanetes githagineus | |
| Two-barred Crossbill | Loxia leucoptera | |
| Yellow-browed Bunting | Emberiza chrysophrys | |
| Yellow-breasted Bunting | Emberiza aureola | |
| Rustic Bunting | Emberiza rustica | |
| Black-headed Bunting | Emberiza melanocephala | |
| Rock Bunting | Emberiza cia | |
| Pine Bunting | Emberiza leucocephalos | |
| Dark-eyed Junco | Junco hyemalis | |
| White-throated Sparrow | Zonotrichia albicollis | |
| Golden-winged Warbler | Vermivora chrysoptera | |
| Common Yellowthroat | Geothlypis trichas | |
| Blackpoll Warbler | Setophaga striata | |
| American Yellow Warbler | Setophaga aestiva |
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