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Adventive
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Extinct
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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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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
Mallard
Anas
platyrhynchos
2751
Birds
Anatidae
Anseriformes
Aves
Animalia
2
Pied-billed Grebe
Podilymbus
podiceps
620
Birds
Podicipedidae
Podicipediformes
Aves
Animalia
3
Red-shouldered Hawk
Buteo
lineatus
1927
Birds
Accipitridae
Accipitriformes
Aves
Animalia
4
Northern Flicker
Colaptes
auratus
1443
Birds
Picidae
Piciformes
Aves
Animalia
5
Tree Swallow
Tachycineta
bicolor
892
Birds
Hirundinidae
Passeriformes
Aves
Animalia
6
Carolina Wren
Thryothorus
ludovicianus
1952
Birds
Troglodytidae
Passeriformes
Aves
Animalia
7
Eastern Bluebird
Sialia
sialis
2820
Birds
Turdidae
Passeriformes
Aves
Animalia
8
Cape May Warbler
Setophaga
tigrina
423
Birds
Parulidae
Passeriformes
Aves
Animalia
9
Blackpoll Warbler
Setophaga
striata
401
Birds
Parulidae
Passeriformes
Aves
Animalia
10
Dark-eyed Junco (Slate-colored)
Junco
hyemalis
1781
Birds
Emberizidae
Passeriformes
Aves
Animalia
11
Song Sparrow
Melospiza
melodia
2505
Birds
Emberizidae
Passeriformes
Aves
Animalia
12
Northern Cardinal
Cardinalis
cardinalis
3709
Birds
Cardinalidae
Passeriformes
Aves
Animalia
13
Common Grackle
Quiscalus
quiscula
1124
Birds
Icteridae
Passeriformes
Aves
Animalia
1
Eastern Tent Caterpillar Moth
Malacosoma
americana
666
Moths
Lasiocampidae
Lepidoptera
Insecta
Animalia
1
American Beaver
Castor
canadensis
599
Mammals
Castoridae
Rodentia
Mammalia
Animalia
1
Eastern Ratsnake
Pantherophis
alleghaniensis
1106
Reptiles
Colubridae
Squamata
Reptilia
Animalia
1
Field Garlic
Allium
vineale
336
Amaryllis Family
Amaryllidaceae
Asparagales
Magnoliopsida
Plantae
1
Annual Fleabane
Erigeron
annuus
191
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
2
Virginia Dwarf Dandelion
Krigia
virginica
172
Aster Family
Asteraceae
Asterales
Magnoliopsida
Plantae
1
Lesser Celandine
Ficaria
verna
1118
Buttercup Family
Ranunculaceae
Ranunculales
Magnoliopsida
Plantae
1
Common Spicebush
Lindera
benzoin
775
Laurel Family
Lauraceae
Laureles
Magnoliopsida
Plantae
1
Common Periwinkle
Vinca
minor
377
Milkweed Family
Apocynaceae
Gentianales
Magnoliopsida
Plantae
1
Virginia Springbeauty
Claytonia
virginica
1415
Montia Family
Montiaceae
Caryophyllales
Magnoliopsida
Plantae
1
Hairy Bittercress
Cardamine
hirsuta
700
Mustard Family
Brassicaceae
Brassicales
Magnoliopsida
Plantae
2
Roadside Pennycress
Thlaspi
alliaceum
351
Mustard Family
Brassicaceae
Brassicales
Magnoliopsida
Plantae
1
Common Chickweed
Stellaria
media
443
Pink Family
Caryophyllaceae
Caryophyllales
Magnoliopsida
Plantae
1
Bird's-eye Speedwell
Veronica
persica
1293
Plantain Family
Plantaginaceae
Lamiales
Magnoliopsida
Plantae
2
Annual Toadflax
Linaria
canadensis
370
Plantain Family
Plantaginaceae
Lamiales
Magnoliopsida
Plantae
