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Adventive
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Coastal Plain only
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Excluded
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Exotic
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Extinct
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Extirpated
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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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Worcester only
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Photos
Common Name
Genus
Species
Records  
Category
Family
Order
Class
Kingdom
1
Ross's Goose
Anser
rossii
149
Birds
Anatidae
Anseriformes
Aves
Animalia
2
Tundra Swan
Cygnus
columbianus
773
Birds
Anatidae
Anseriformes
Aves
Animalia
3
American Wigeon
Mareca
americana
676
Birds
Anatidae
Anseriformes
Aves
Animalia
4
Tufted Duck
Aythya
fuligula
54
Birds
Anatidae
Anseriformes
Aves
Animalia
5
Common Merganser
Mergus
merganser
623
Birds
Anatidae
Anseriformes
Aves
Animalia
6
Common Gallinule
Gallinula
galeata
203
Birds
Rallidae
Gruiformes
Aves
Animalia
7
Sandhill Crane
Antigone
canadensis
172
Birds
Gruidae
Gruiformes
Aves
Animalia
8
American Avocet
Recurvirostra
americana
160
Birds
Recurvirostridae
Charadriiformes
Aves
Animalia
9
Black-legged Kittiwake
Rissa
tridactyla
31
Birds
Laridae
Charadriiformes
Aves
Animalia
10
Great Black-backed Gull
Larus
marinus
553
Birds
Laridae
Charadriiformes
Aves
Animalia
11
Bald Eagle
Haliaeetus
leucocephalus
4285
Birds
Accipitridae
Accipitriformes
Aves
Animalia
12
Short-eared Owl
Asio
flammeus
191
Birds
Strigidae
Strigiformes
Aves
Animalia
13
Red-headed Woodpecker
Melanerpes
erythrocephalus
534
Birds
Picidae
Piciformes
Aves
Animalia
14
Couch's Kingbird
Tyrannus
couchii
17
Birds
Tyrannidae
Passeriformes
Aves
Animalia
15
Sedge Wren
Cistothorus
stellaris
144
Birds
Troglodytidae
Passeriformes
Aves
Animalia
16
Marsh Wren
Cistothorus
palustris
267
Birds
Troglodytidae
Passeriformes
Aves
Animalia
17
Black-throated Gray Warbler
Setophaga
nigrescens
64
Birds
Parulidae
Passeriformes
Aves
Animalia
18
Eastern Towhee
Pipilo
erythrophthalmus
1056
Birds
Emberizidae
Passeriformes
Aves
Animalia
19
Field Sparrow
Spizella
pusilla
944
Birds
Emberizidae
Passeriformes
Aves
Animalia
20
Ipswich Sparrow
Passerculus
sandwichensis
princeps
40
Birds
Emberizidae
Passeriformes
Aves
Animalia
21
Swamp Sparrow
Melospiza
georgiana
977
Birds
Emberizidae
Passeriformes
Aves
Animalia
22
Harris's Sparrow
Zonotrichia
querula
45
Birds
Emberizidae
Passeriformes
Aves
Animalia
23
Black-headed Grosbeak
Pheucticus
melanocephalus
24
Birds
Cardinalidae
Passeriformes
Aves
Animalia
24
Painted Bunting
Passerina
ciris
119
Birds
Cardinalidae
Passeriformes
Aves
Animalia
25
Yellow-headed Blackbird
Xanthocephalus
xanthocephalus
58
Birds
Icteridae
Passeriformes
Aves
Animalia
1
No Common Name
Apheloria
virginiensis
169
Millipedes
Xystodesmidae
Polydesmida
Diplopoda
Animalia
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