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Adventive
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Coastal Plain only
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Endangered (Federal)
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Exotic
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Extinct
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Extirpated
\n
Extralimital
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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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In need of conservation
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Reviewable (MD/DCRC)
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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
American Wigeon
Mareca
americana
570
Birds
Anatidae
Anseriformes
Aves
Animalia
2
Common Goldeneye
Bucephala
clangula
386
Birds
Anatidae
Anseriformes
Aves
Animalia
3
Horned Grebe
Podiceps
auritus
463
Birds
Podicipedidae
Podicipediformes
Aves
Animalia
4
Red-necked Grebe
Podiceps
grisegena
147
Birds
Podicipedidae
Podicipediformes
Aves
Animalia
5
Black-billed Cuckoo
Coccyzus
erythropthalmus
164
Birds
Cuculidae
Cuculiformes
Aves
Animalia
6
Least Tern
Sternula
antillarum
334
Birds
Laridae
Charadriiformes
Aves
Animalia
7
American Bittern
Botaurus
lentiginosus
233
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
8
Cattle Egret
Bubulcus
ibis
210
Birds
Ardeidae
Pelecaniformes
Aves
Animalia
9
Red-tailed Hawk
Buteo
jamaicensis
1190
Birds
Accipitridae
Accipitriformes
Aves
Animalia
10
Barn Swallow
Hirundo
rustica
713
Birds
Hirundinidae
Passeriformes
Aves
Animalia
11
Sedge Wren
Cistothorus
stellaris
143
Birds
Troglodytidae
Passeriformes
Aves
Animalia
12
House Sparrow
Passer
domesticus
1451
Birds
Passeridae
Passeriformes
Aves
Animalia
13
American Pipit
Anthus
rubescens
258
Birds
Motacillidae
Passeriformes
Aves
Animalia
14
Snow Bunting
Plectrophenax
nivalis
187
Birds
Calcariidae
Passeriformes
Aves
Animalia
15
Golden-winged Warbler
Vermivora
chrysoptera
105
Birds
Parulidae
Passeriformes
Aves
Animalia
16
Chipping Sparrow
Spizella
passerina
1297
Birds
Emberizidae
Passeriformes
Aves
Animalia
17
Bobolink
Dolichonyx
oryzivorus
303
Birds
Icteridae
Passeriformes
Aves
Animalia
1
Hackberry Emperor
Asterocampa
celtis
263
Butterflies
Nymphalidae
Lepidoptera
Insecta
Animalia
2
Henry's Elfin
Callophrys
henrici
225
Butterflies
Lycaenidae
Lepidoptera
Insecta
Animalia
3
Eastern Tailed-Blue
Cupido
comyntas
2234
Butterflies
Lycaenidae
Lepidoptera
Insecta
Animalia
4
Eastern Comma
Polygonia
comma
634
Butterflies
Nymphalidae
Lepidoptera
Insecta
Animalia
5
Question Mark
Polygonia
interrogationis
560
Butterflies
Nymphalidae
Lepidoptera
Insecta
Animalia
1
No Common Name
Acanthocephala
terminalis
151
Leaf-footed Bugs
Coreidae
Hemiptera
Insecta
Animalia
1
Common Angle Moth
Macaria
aemulataria
592
Moths
Geometridae
Lepidoptera
Insecta
Animalia
2
Yellow-collared Scape Moth
Cisseps
fulvicollis
511
Moths
Erebidae
Lepidoptera
Insecta
Animalia
3
Inornate Pyrausta Moth
Pyrausta
inornatalis
24
Moths
Crambidae
Lepidoptera
Insecta
Animalia
4
Corn Earworm Moth
Helicoverpa
zea
253
Moths
Noctuidae
Lepidoptera
Insecta
Animalia
5
Gray-edged Bomolocha Moth
Hypena
madefactalis
177
Moths
Erebidae
Lepidoptera
Insecta
Animalia
6
Euonymous Defoliator Moth
Pryeria
sinica
48
Moths
Zygaenidae
Lepidoptera
Insecta
Animalia
7
Small Engrailed Moth
Ectropis
crepuscularia
375
Moths
Geometridae
Lepidoptera
Insecta
Animalia
8
Clear Dagger Moth
Acronicta
clarescens
27
Moths
Noctuidae
Lepidoptera
Insecta
Animalia
9
Cranberry Spanworm Moth
Ematurga
amitaria
1
Moths
Geometridae
Lepidoptera
Insecta
Animalia
10
Snowy Urola Moth
Urola
nivalis
361
Moths
Crambidae
Lepidoptera
Insecta
Animalia
11
Discolored Renia Moth
Renia
discoloralis
443
Moths
Erebidae
Lepidoptera
Insecta
Animalia
12
Confused Eusarca Moth
Eusarca
confusaria
493
Moths
Geometridae
Lepidoptera
Insecta
Animalia
13
White-lined Sphinx
Hyles
lineata
91
Moths
Sphingidae
Lepidoptera
Insecta
Animalia
1
Eastern Cicada Killer
Sphecius
speciosus
204
Sand Wasps
Crabronidae
Hymenoptera
Insecta
Animalia
1
Goldenrod Soldier Beetle
Chauliognathus
pensylvanicus
511
Soldier Beetles
Cantharidae
Coleoptera
Insecta
Animalia
1
Butternut Woollyworm
Eriocampa
juglandis
32
Symphyta
Tenthredinidae
Hymenoptera
Insecta
Animalia
1
No Common Name
Trichopoda
pennipes
34
Tachinid Flies
Tachinidae
Diptera
Insecta
Animalia
1
Eastern Gray Squirrel
Sciurus
carolinensis
2250
Mammals
Sciuridae
Rodentia
Mammalia
Animalia
2
Mink
Neovison
vison
118
Mammals
Mustelidae
Carnivora
Mammalia
Animalia
3
Northern River Otter
Lontra
canadensis
187
Mammals
Mustelidae
Carnivora
Mammalia
Animalia
1
Northern Watersnake
Nerodia
sipedon
sipedon
1188
Reptiles
Colubridae
Squamata
Reptilia
Animalia
2
Eastern Copperhead
Agkistrodon
contortrix
376
Reptiles
Crotalidae
Squamata
Reptilia
Animalia
3
Eastern Fence Lizard
Sceloporus
undulatus
520
Reptiles
Phrynosomatidae
Squamata
Reptilia
Animalia
4
Eastern Hog-nosed Snake
Heterodon
platirhinos
283
Reptiles
Colubridae
Squamata
Reptilia
Animalia
5
Common Gartersnake
Thamnophis
sirtalis
1005
Reptiles
Colubridae
Squamata
Reptilia
Animalia
1
Giant Puffball
Calvatia
gigantea
37
Fungi
Agaricaceae
Agaricales
Agaricomycetes
Fungi
1
Round-lobed Hepatica
Anemone
americana
382
Buttercup Family
Ranunculaceae
Ranunculales
Magnoliopsida
Plantae
1
Flowering Dogwood
Cornus
florida
866
Dogwood Family
Cornaceae
Cornales
Magnoliopsida
Plantae
1
Purple Deadnettle
Lamium
purpureum
1585
Mint Family
Lamiaceae
Lamiales
Magnoliopsida
Plantae
1
Pink Lady's Slipper
Cypripedium
acaule
548
Orchids
Orchidaceae
Orchidales
Magnoliopsida
Plantae
1
Princess Tree
Paulownia
tomentosa
358
Paulownia Family
Paulowniaceae
Lamiales
Magnoliopsida
Plantae
1
Black Locust
Robinia
pseudoacacia
763
Pea Family
Fabaceae
Fabales
Magnoliopsida
Plantae
2
Perennial Pea
Lathyrus
latifolius
95
Pea Family
Fabaceae
Fabales
Magnoliopsida
Plantae
1
American Sycamore
Platanus
occidentalis
935
Plane-tree Family
Platanaceae
Hamamelidales
Magnoliopsida
Plantae
1
Annual Toadflax
Linaria
canadensis
364
Plantain Family
Plantaginaceae
Lamiales
Magnoliopsida
Plantae
1
Marsh Blue Violet
Viola
cucullata
160
Violet Family
Violaceae
Violales
Magnoliopsida
Plantae
2
Bird's-foot Violet
Viola
pedata
236
Violet Family
Violaceae
Violales
Magnoliopsida
Plantae