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Adventive
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Coastal Plain only
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Extinct
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Extirpated
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G1 (Highly globally rare)
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G1G2 (Highly globally rare)
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G2 (Globally rare)
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G2G3 (Globally rare)
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G3 (Globally rare/local)
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G3G4 (Globally vulnerable)
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G4
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G4G5
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G5
\n
Garrett only
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GH (No known extant occurrences)
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GU (Global status uncertain)
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S1 (Highly state rare)
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S1B (Highly state rare breeder)
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S1M (State rare migrant)
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S1N (State rare non-breeder)
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S1S2 (Highly state rare)
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S1S2B (State rare breeder)
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S2 (State rare)
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S2B (State rare breeder)
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S2B (State rare breeder)
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S2S3 (State rare)
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S2S3B (State rare breeder)
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S3 (Watch list)
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S3B (State watchlist breeder)
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S3S4
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S3S4B (State watchlist breeder)
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S4SE
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SH (Historical)
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SHB (State historical breeder)
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SR (State rare)
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SUB (Status uncertain breeder)
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SXB (State extirpated breeder)
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SXM (State extirpated migrant)
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Western MD only
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Photos
Common Name
Genus
Species
Records  
Category
Family
Order
Class
Kingdom
1
Northern Snakehead
Channa
argus
139
Fish
Channidae
Perciformes
Actinopterygii
Animalia
2
Striped Bass
Morone
saxatilis
265
Fish
Moronidae
Perciformes
Actinopterygii
Animalia
1
American Bullfrog
Lithobates
catesbeianus
1693
Amphibians
Ranidae
Anura
Amphibia
Animalia
1
Yellow Garden Spider
Argiope
aurantia
538
Spiders
Araneidae
Araneae
Arachnida
Animalia
1
Mute Swan
Cygnus
olor
202
Birds
Anatidae
Anseriformes
Aves
Animalia
2
Wood Duck
Aix
sponsa
1242
Birds
Anatidae
Anseriformes
Aves
Animalia
3
Gadwall
Mareca
strepera
552
Birds
Anatidae
Anseriformes
Aves
Animalia
4
American Wigeon
Mareca
americana
676
Birds
Anatidae
Anseriformes
Aves
Animalia
5
Mallard
Anas
platyrhynchos
2751
Birds
Anatidae
Anseriformes
Aves
Animalia
6
Ring-necked Duck
Aythya
collaris
1083
Birds
Anatidae
Anseriformes
Aves
Animalia
7
Lesser Scaup
Aythya
affinis
538
Birds
Anatidae
Anseriformes
Aves
Animalia
8
Long-tailed Duck
Clangula
hyemalis
547
Birds
Anatidae
Anseriformes
Aves
Animalia
9
Bufflehead
Bucephala
albeola
1311
Birds
Anatidae
Anseriformes
Aves
Animalia
10
Common Merganser
Mergus
merganser
621
Birds
Anatidae
Anseriformes
Aves
Animalia
11
Ruddy Duck
Oxyura
jamaicensis
763
Birds
Anatidae
Anseriformes
Aves
Animalia
12
Pied-billed Grebe
Podilymbus
podiceps
620
Birds
Podicipedidae
Podicipediformes
Aves
Animalia
13
Mourning Dove
Zenaida
macroura
2112
Birds
Columbidae
Columbiformes
Aves
Animalia
14
American Coot
Fulica
americana
473
Birds
Rallidae
Gruiformes
Aves
Animalia
15
Ruddy Turnstone
Arenaria
interpres
262
Birds
Scolopacidae
Charadriiformes
Aves
Animalia
16
Purple Sandpiper
Calidris
maritima
188
Birds
Scolopacidae
Charadriiformes
Aves
Animalia
17
Spotted Sandpiper
Actitis
macularius
523
Birds
Scolopacidae
Charadriiformes
Aves
Animalia
18
Least Tern
Sternula
antillarum
336
Birds
Laridae
Charadriiformes
Aves
Animalia
19
Double-crested Cormorant
Nannopterum
auritum
1543
Birds
Phalacrocoracidae
Suliformes
Aves
Animalia
20
Brown Pelican
Pelecanus
occidentalis
325
Birds
Pelecanidae
Pelecaniformes
Aves
Animalia
21
Great Blue Heron
Ardea
herodias
3726
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
22
Great Egret
Ardea
alba
839
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
23
Cattle Egret
Bubulcus
ibis
212
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
24
Green Heron
Butorides
virescens
1070
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
25
Black-crowned Night-Heron
Nycticorax
nycticorax
678
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
26
Black Vulture
Coragyps
atratus
1383
Birds
Cathartidae
Accipitriformes
Aves
Animalia
27
Turkey Vulture
Cathartes
aura
2203
Birds
Cathartidae
Accipitriformes
Aves
Animalia
28
Osprey
Pandion
haliaetus
1891
Birds
Pandioidae
Accipitriformes
Aves
Animalia
29
Cooper's Hawk
Accipiter
cooperii
550
Birds
Accipitridae
Accipitriformes
Aves
Animalia
30
Bald Eagle
Haliaeetus
leucocephalus
4285
Birds
Accipitridae
Accipitriformes
Aves
Animalia
31
Red-shouldered Hawk
Buteo
lineatus
1927
Birds
Accipitridae
Accipitriformes
Aves
Animalia
32
Red-tailed Hawk
Buteo
jamaicensis
1349
Birds
Accipitridae
Accipitriformes
Aves
Animalia
33
Belted Kingfisher
Megaceryle
alcyon
1378
Birds
Alcedinidae
Coraciiformes
Aves
Animalia
34
Red-bellied Woodpecker
Melanerpes
carolinus
1911
Birds
Picidae
Piciformes
Aves
Animalia
35
Yellow-bellied Sapsucker
Sphyrapicus
varius
1110
Birds
Picidae
Piciformes
Aves
Animalia
36
Downy Woodpecker
Dryobates
pubescens
1804
Birds
Picidae
Piciformes
Aves
Animalia
37
Northern Flicker
Colaptes
auratus
1444
Birds
Picidae
Piciformes
Aves
Animalia
38
Pileated Woodpecker
Dryocopus
pileatus
1431
Birds
Picidae
Piciformes
Aves
Animalia
39
Eastern Kingbird
Tyrannus
tyrannus
899
Birds
Tyrannidae
Passeriformes
Aves
Animalia
40
Blue Jay
Cyanocitta
cristata
1984
Birds
Corvidae
Passeriformes
Aves
Animalia
41
Barn Swallow
Hirundo
rustica
727
Birds
Hirundinidae
Passeriformes
Aves
Animalia
42
American Robin
Turdus
migratorius
3289
Birds
Turdidae
Passeriformes
Aves
Animalia
43
Brown Thrasher
Toxostoma
rufum
857
Birds
Mimidae
Passeriformes
Aves
Animalia
44
Northern Mockingbird
Mimus
polyglottos
2102
Birds
Mimidae
Passeriformes
Aves
Animalia
45
European Starling
Sturnus
vulgaris
1447
Birds
Sturnidae
Passeriformes
Aves
Animalia
46
House Sparrow
Passer
domesticus
1550
Birds
Passeridae
Passeriformes
Aves
Animalia
47
Eastern Towhee
Pipilo
erythrophthalmus
1055
Birds
Emberizidae
Passeriformes
Aves
Animalia
48
Song Sparrow
Melospiza
melodia
2507
Birds
Emberizidae
Passeriformes
Aves
Animalia
49
Northern Cardinal
Cardinalis
cardinalis
3710
Birds
Cardinalidae
Passeriformes
Aves
Animalia
50
Red-winged Blackbird
Agelaius
phoeniceus
2316
Birds
Icteridae
Passeriformes
Aves
Animalia
51
Common Grackle
Quiscalus
quiscula
1126
Birds
Icteridae
Passeriformes
Aves
Animalia
52
Baltimore Oriole
Icterus
galbula
539
Birds
Icteridae
Passeriformes
Aves
Animalia
1
Honey Bee
Apis
mellifera
1233
Bees
Apidae
Hymenoptera
Insecta
Animalia
1
Gray Hairstreak
Strymon
melinus
852
Butterflies
Lycaenidae
Lepidoptera
Insecta
Animalia
2
Monarch
Danaus
plexippus
3257
Butterflies
Nymphalidae
Lepidoptera
Insecta
Animalia
3
Common Buckeye
Junonia
coenia
1610
Butterflies
Nymphalidae
Lepidoptera
Insecta
Animalia
4
Cabbage White
Pieris
rapae
2687
Butterflies
Pieridae
Lepidoptera
Insecta
Animalia
1
American Carrion Beetle
Necrophila
americana
471
Carrion Beetles
Silphidae
Coleoptera
Insecta
Animalia
1
Needham's Skimmer
Libellula
needhami
734
Dragonflies
Libellulidae
Odonata
Insecta
Animalia
2
Common Pondhawk
Erythemis
simplicicollis
2580
Dragonflies
Libellulidae
Odonata
Insecta
Animalia
3
Blue Dasher
Pachydiplax
longipennis
2825
Dragonflies
Libellulidae
Odonata
Insecta
Animalia
4
Black-shouldered Spinyleg
Dromogomphus
spinosus
314
Dragonflies
Gomphidae
Odonata
Insecta
Animalia
5
Widow Skimmer
Libellula
luctuosa
1652
Dragonflies
Libellulidae
Odonata
Insecta
Animalia
6
Halloween Pennant
Celithemis
eponina
796
Dragonflies
Libellulidae
Odonata
Insecta
Animalia
1
Differential Grasshopper
Melanoplus
differentialis
928
Grasshoppers
Acrididae
Orthoptera
Insecta
Animalia
1
Multicolored Asian Lady Beetle
Harmonia
axyridis
1020
Lady Beetles
Coccinellidae
Coleoptera
Insecta
Animalia
1
Chinese Mantis
Tenodera
sinensis
229
Mantids
Mantidae
Mantodea
Insecta
Animalia
1
Euonymous Defoliator Moth
Pryeria
sinica
48
Moths
Zygaenidae
Lepidoptera
Insecta
Animalia
1
Blue-winged Wasp
Scolia
dubia
402
Scoliid Wasps
Scoliidae
Hymenoptera
Insecta
Animalia
1
White-tailed Deer
Odocoileus
virginianus
2893
Mammals
Cervidae
Artiodactyla
Mammalia
Animalia
2
Eastern Cottontail
Sylvilagus
floridanus
1580
Mammals
Leporidae
Lagomorpha
Mammalia
Animalia
3
Red Fox
Vulpes
vulpes
1017
Mammals
Canidae
Carnivora
Mammalia
Animalia
4
Muskrat
Ondatra
zibethicus
360
Mammals
Muridae
Rodentia
Mammalia
Animalia
5
Woodchuck
Marmota
monax
630
Mammals
Sciuridae
Rodentia
Mammalia
Animalia
6
Common Raccoon
Procyon
lotor
904
Mammals
Procyonidae
Carnivora
Mammalia
Animalia
1
Horseshoe Crab
Limulus
polyphemus
297
Horseshoe Crabs
Limulidae
Xiphosura
Merostomata
Animalia
1
Eastern Wormsnake
Carphophis
amoenus
amoenus
400
Reptiles
Colubridae
Squamata
Reptilia
Animalia
2
Red-eared Slider
Trachemys
scripta
elegans
1630
Reptiles
Emydidae
Testudines
Reptilia
Animalia
3
Diamond-backed Terrapin
Malaclemys
terrapin
401
Reptiles
Emydidae
Testudines
Reptilia
Animalia
4
Snapping Turtle
Chelydra
serpentina
1269
Reptiles
Chelydridae
Testudines
Reptilia
Animalia
5
Northern Watersnake
Nerodia
sipedon
sipedon
1256
Reptiles
Colubridae
Squamata
Reptilia
Animalia
1
Bull Thistle
Cirsium
vulgare
349
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
1
Burning Bush
Euonymus
atropurpureus
20
Bittersweet Family
Celastraceae
Celastrales
Magnoliopsida
Plantae
1
Pale Yellow Iris
Iris
pseudacorus
157
Iris Family
Iridaceae
Liliales
Magnoliopsida
Plantae
1
Crimson-eyed Rosemallow
Hibiscus
moscheutos
520
Mallow Family
Malvaceae
Malvales
Magnoliopsida
Plantae
1
Indian Strawberry
Potentilla
indica
581
Rose Family
Rosaceae
Rosales
Magnoliopsida
Plantae
1
Trumpet Creeper
Campsis
radicans
849
Trumpet-creeper Family
Bignoniaceae
Lamiales
Magnoliopsida
Plantae
1
Marginal Woodfern
Dryopteris
marginalis
212
Ferns
Dryopteridaceae
Polypodiales
Polypodiopsida
Plantae
2
Christmas Fern
Polystichum
acrostichoides
1768
Ferns
Dryopteridaceae
Polypodiales
Polypodiopsida
Plantae