Maryland & DC 2002-2006 (published!)
Species Info
| Species Information | ||||
|---|---|---|---|---|
currently sorted by: safe date start |
||||
| sort: taxonomic | alpha | sort by | sort by | sort by | |
| Species | Alpha Code* | Safe date start** | Safe date end | Habitat |
| Trumpeter Swan | TRUS | / | / | |
| Northern Pintail | NOPI | / | / | |
| Canvasback | CANV | / | / | |
| Redhead | REDH | / | / | |
| Surf Scoter | SUSC | / | / | |
| Bufflehead | BUFF | / | / | |
| Red-breasted Merganser | RBME | / | / | |
| Common Loon | COLO | / | / | |
| Horned Grebe | HOGR | / | / | |
| White Ibis | WHIB | / | / | |
| Swallow-tailed Kite | STKI | / | / | |
| Ring-billed Gull | RBGU | / | / | |
| Caspian Tern | CATE | / | / | |
| Western Kingbird | WEKI | / | / | |
| Red Crossbill | RECR | / | / | |
| Rock Pigeon | ROPI | 1 / 1 | 12 / 31 | Cities, suburbs, farms, bridges |
| Barred Owl | BADO | 1 / 15 | 8 / 31 | Bottomlands, swamps, moist woods |
| House Sparrow | HOSP | 2 / 1 | 8 / 31 | Cities, farms, parks, suburbs |
| Carolina Chickadee | CACH | 3 / 1 | 8 / 31 | Variety of woodland. habitats, suburbs |
| Tufted Titmouse | TUTI | 3 / 1 | 8 / 31 | Variety of woodland. habitats, suburbs |
| Carolina Wren | CARW | 3 / 1 | 9 / 30 | Wood edges, thickets, near residences |
| Red-bellied Woodpecker | RBWO | 3 / 15 | 8 / 31 | Variety of woodland habitats |
| Downy Woodpecker | DOWO | 3 / 15 | 8 / 31 | Variety of wodlots. and edge habitats |
| Hairy Woodpecker | HAWO | 3 / 15 | 8 / 31 | Deep woods, primarily deciduous |
| Red-cockaded Woodpecker | RCWO | 3 / 15 | 8 / 31 | Loblolly pines |
| Pileated Woodpecker | PIWO | 3 / 15 | 8 / 31 | Deep woods, some secondary growth |
| Northern Cardinal | NOCA | 3 / 15 | 9 / 30 | Edge, brush. parks, suburbs |
| Brown-headed Nuthatch | BHNU | 3 / 20 | 8 / 15 | Loblolly pine forests |
| Ruffed Grouse | RUGR | 4 / 1 | 7 / 31 | Mixed upland woods |
| Eastern Screech-Owl | EASO | 4 / 1 | 8 / 15 | Open woods, orchards |
| Common Raven | CORA | 4 / 1 | 7 / 31 | Mountainous, remote regions |
| Northern Mockingbird | NOMO | 4 / 1 | 9 / 10 | Open country, hedgerows, suburbs |
| European Starling | EUST | 4 / 1 | 7 / 31 | Everywhere |
| Belted Kingfisher | BEKI | 4 / 10 | 7 / 20 | Along streams, or lakes with banks |
| Horned Lark | HOLA | 4 / 10 | 9 / 5 | Most short-grass areas |
| Ring-necked Pheasant | RNEP | 4 / 15 | 9 / 30 | Open country, pastures, fields |
| Wild Turkey | WITU | 4 / 15 | 9 / 30 | Mature deciduous forests, edges |
| Northern Bobwhite | NOBO | 4 / 15 | 9 / 30 | Farmlands, near edge and hedgerows |
| Bald Eagle | BAEA | 4 / 15 | 8 / 5 | Tall trees near lakes, marshes, rivers |
| Northern Goshawk | NOGO | 4 / 15 | 8 / 31 | Large mature mixed woodlands |
| American Woodcock | AMWO | 4 / 15 | 8 / 31 | Upland forest edges |
| Mourning Dove | MODO | 4 / 15 | 7 / 20 | Suburbs, woodlots, farmland |
| Barn Owl | BANO | 4 / 15 | 9 / 30 | Open country, near structures |
| Boat-tailed Grackle | BTGR | 4 / 15 | 8 / 31 | Brushy, open woods, near salt water |
| Common Grackle | COGR | 4 / 15 | 6 / 30 | Suburbs, farmland |
| Wood Duck | WODU | 4 / 20 | 8 / 15 | Wooded swamps, fresh marshes, streams |
| Yellow-crowned Night-Heron | YCNH | 4 / 20 | 6 / 30 | Wooded habitats, usually near water |
| Killdeer | KILL | 4 / 20 | 6 / 25 | Most open, sparsely vegetated areas |
| American Crow | AMCR | 4 / 20 | 8 / 31 | Open areas, edges, farms, parks |
| Swainson's Warbler | SWWA | 4 / 20 | 8 / 31 | Brushy, moist forest |
| Pine Warbler | PIWA | 4 / 25 | 8 / 10 | Variety of pine forests |
| Eastern Meadowlark | EAME | 4 / 25 | 9 / 10 | Hayfields, pastures |
| Mute Swan | MUSW | 5 / 1 | 8 / 31 | Shore or islands in any water body |
| Green Heron | GRHE | 5 / 1 | 7 / 15 | Woods near marshes or open water |
| Black Vulture | BLVU | 5 / 1 | 7 / 31 | Woods, cliffs, caves, buildings |
| Black Rail | BLRA | 5 / 1 | 8 / 15 | Brackish marshes |
| Clapper Rail | CLRA | 5 / 1 | 8 / 31 | Salt and brackish marshes |
| King Rail | KIRA | 5 / 1 | 8 / 31 | Fresh and brackish marshes |
| Long-eared Owl | LEOW | 5 / 1 | 9 / 30 | Evergreen forest |
| Short-eared Owl | SEOW | 5 / 1 | 9 / 30 | Open pastureland, marshes, meadows |
| Chuck-will's-widow | CWWI | 5 / 1 | 8 / 10 | Dry open upland woods |
| Eastern Phoebe | EAPH | 5 / 1 | 8 / 31 | Near water, bridges, buildings |
| Black-capped Chickadee | BCCH | 5 / 1 | 9 / 20 | Variety of woodland. habitats, suburbs |
| Eastern Bluebird | EABL | 5 / 1 | 8 / 31 | Wood edges, farmlands |
| American Robin | AMRO | 5 / 1 | 7 / 31 | Everywhere, except very urban areas |
| Yellow-throated Warbler | YTWA | 5 / 1 | 7 / 15 | Loblolly pines, sycamores |
| Louisiana Waterthrush | LOWA | 5 / 1 | 7 / 10 | Rocky streams, sluggish backwaters |
| Chipping Sparrow | CHSP | 5 / 1 | 8 / 31 | Farms, open mixed woods, suburbs |
| Field Sparrow | FISP | 5 / 1 | 8 / 31 | Brushy, weedy fields, hedgerows |
| Song Sparrow | SOSP | 5 / 1 | 7 / 31 | Brushy fields, marsh edges, suburbs |
| Red-winged Blackbird | RWBL | 5 / 1 | 7 / 10 | Marshes, ponds, meadows, hayfields |
| Brown-headed Cowbird | BHCO | 5 / 1 | 7 / 10 | Everywhere, except urban areas |
| House Finch | HOFI | 5 / 1 | 7 / 15 | Residential, especially evergreens |
| Northern Saw-whet Owl | NSWO | 5 / 5 | 9 / 10 | Mixed, moist woods, with conifers |
| Canada Goose | CANG | 5 / 10 | 7 / 31 | Shore or islands in any water body |
| Black-crowned Night-Heron | BCNH | 5 / 10 | 6 / 30 | Shrubs, trees near tidal water |
| Red-shouldered Hawk | RSHA | 5 / 10 | 8 / 20 | Wet mixed forests, swamps |
| Red-tailed Hawk | RTHA | 5 / 10 | 8 / 20 | Mature forests, often near edges |
| Whip-poor-will | WPWI | 5 / 10 | 7 / 15 | Dry open upland woods |
| Northern Flicker (Yellow-shafted Flicker) | YSFL | 5 / 10 | 8 / 25 | Open woods, scattered trees, edges |
| Loggerhead Shrike | LOSH | 5 / 10 | 7 / 20 | Open country, hedgerows, cedars |
| Fish Crow | FICR | 5 / 10 | 8 / 31 | Wood edges, farms, tidewater areas |
| White-breasted Nuthatch | WBNU | 5 / 10 | 8 / 15 | Variety of woodland habitats, suburbs |
| Bewick's Wren | BEWR | 5 / 10 | 8 / 31 | Open woods, thickets, near residences |
| Prothonotary Warbler | PROW | 5 / 10 | 7 / 20 | Swamps, bottomlands |
| Mallard | MALL | 5 / 15 | 8 / 20 | High ground near water, often woods |
| Great Blue Heron | GBHE | 5 / 15 | 6 / 30 | Wooded swamps, beaver ponds, islands |
| Turkey Vulture | TUVU | 5 / 15 | 8 / 20 | Woods, cliffs, caves, buildings |
| American Kestrel | AMKE | 5 / 15 | 7 / 15 | Open country, scattered trees, edge |
| Wilson's Plover | WIPL | 5 / 15 | 7 / 31 | Sandy ocean beaches |
| Piping Plover | PIPL | 5 / 15 | 7 / 20 | Sandy ocean beaches |
| American Oystercatcher | AMOY | 5 / 15 | 7 / 25 | Sandy ocean beaches, fresh spoil |
| Black-necked Stilt | BNST | 5 / 15 | 7 / 15 | |
| Gull-billed Tern | GBTE | 5 / 15 | 7 / 5 | Beaches, coastal islands |
| Forster's Tern | FOTE | 5 / 15 | 6 / 25 | Salt marshes |
| Chimney Swift | CHSW | 5 / 15 | 8 / 10 | Primarily in towns |
| Ruby-throated Hummingbird | RTHU | 5 / 15 | 7 / 31 | Open woodlands, edges |
| Brown Creeper | BRCR | 5 / 15 | 8 / 31 | Deep woods, flooded woods |
| Blue-gray Gnatcatcher | BGGN | 5 / 15 | 7 / 31 | Woodlands near streams |
| Brown Thrasher | BRTH | 5 / 15 | 8 / 31 | Dense thickets, shrubs, hedgerows |
| Black-and-white Warbler | BAWW | 5 / 15 | 7 / 25 | Extensive deciduous or mixed woods |
| Vesper Sparrow | VESP | 5 / 15 | 8 / 31 | Short grass areas, cultivated fields |
| Henslow's Sparrow | HESP | 5 / 15 | 8 / 31 | Weedy fields, wet meadows |
| Gadwall | GADW | 5 / 20 | 8 / 20 | High ground near water |
| American Black Duck | ABDU | 5 / 20 | 7 / 31 | High ground near water, often woods |
| Ring-necked Duck | RNDU | 5 / 20 | 8 / 15 | |
| Hooded Merganser | HOME | 5 / 20 | 8 / 31 | Wooded swamps, fresh marshes, streams |
| Pied-billed Grebe | PBGR | 5 / 20 | 7 / 10 | Marshy or weedy ponds |
| American Bittern | AMBI | 5 / 20 | 8 / 15 | Tall marshes, wet fields |
| Least Bittern | LEBI | 5 / 20 | 7 / 31 | Fresh and brackish water marshes |
| Great Egret | GREG | 5 / 20 | 6 / 20 | Shrubs, trees near tidal water |
| Snowy Egret | SNEG | 5 / 20 | 6 / 30 | Shrubs, trees near tidal water |
| Little Blue Heron | LBHE | 5 / 20 | 6 / 20 | Shrubs, trees near tidal water |
| Tricolored Heron | TRHE | 5 / 20 | 6 / 30 | Shrubs, trees near tidal water |
| Cattle Egret | CAEG | 5 / 20 | 6 / 20 | Shrubs, trees near tidal water |
| Glossy Ibis | GLIB | 5 / 20 | 6 / 30 | Shrubs, trees near tidal water |
| Northern Harrier | NOHA | 5 / 20 | 7 / 25 | Marshes, wet pastures and meadows |
| Cooper's Hawk | COHA | 5 / 20 | 7 / 31 | Mixed woodlands, groves |
| Peregrine Falcon | PEFA | 5 / 20 | 8 / 15 | Cliffs, buildings, bridges |
| Virginia Rail | VIRA | 5 / 20 | 8 / 15 | Fresh and brackish marshes |
| Common Moorhen | COMO | 5 / 20 | 8 / 31 | Marshes with open water |
| Upland Sandpiper | UPSA | 5 / 20 | 6 / 25 | Open grasslands and meadows |
| House Wren | HOWR | 5 / 20 | 8 / 15 | Open woods, dead trees, suburbs |
| Winter Wren | WIWR | 5 / 20 | 8 / 31 | Moist woods with hemlocks |
| Golden-crowned Kinglet | GCKI | 5 / 20 | 9 / 10 | Northern coniferous forests |
| Worm-eating Warbler | WEWA | 5 / 20 | 7 / 20 | Deep deciduous woods |
| Ovenbird | OVEN | 5 / 20 | 8 / 5 | Open mature mixed upland forest |
| Eastern Towhee | EATO | 5 / 20 | 8 / 31 | Dry open woodlands, edges, brush |
| Royal Tern | ROYT | 5 / 25 | 7 / 5 | Beaches, coastal islands, spoil areas |
| Sandwich Tern | SATE | 5 / 25 | 7 / 5 | Beaches, coastal islands, spoil areas |
| Roseate Tern | ROST | 5 / 25 | 7 / 5 | Beaches, coastal islands, spoil areas |
| Least Tern | LETE | 5 / 25 | 7 / 5 | Beaches, coastal islands, spoil areas |
| Black Skimmer | BLSK | 5 / 25 | 7 / 5 | Beaches, coastal islands |
| Red-headed Woodpecker | RHWO | 5 / 25 | 8 / 20 | Open country with scattered trees |
| Acadian Flycatcher | ACFL | 5 / 25 | 8 / 5 | Moist woods, bottomlands |
| Great Crested Flycatcher | GCFL | 5 / 25 | 7 / 31 | Variety of woodland habitats |
| Eastern Kingbird | EAKI | 5 / 25 | 7 / 5 | Open areas, edges, often near water |
| White-eyed Vireo | WEVI | 5 / 25 | 8 / 15 | Brushy areas, often near water |
| Yellow-throated Vireo | YTVI | 5 / 25 | 8 / 15 | Tall deciduous trees |
| Tree Swallow | TRES | 5 / 25 | 6 / 25 | Open country near water |
| Northern Rough-winged Swallow | NRWS | 5 / 25 | 6 / 20 | Near water with steep banks |
| Barn Swallow | BARS | 5 / 25 | 6 / 25 | Open country near buildings, bridges |
| Marsh Wren | MAWR | 5 / 25 | 8 / 25 | Cattail and other tall marshes |
| Hermit Thrush | HETH | 5 / 25 | 9 / 15 | Damp forests, with hemlocks |
| Wood Thrush | WOTH | 5 / 25 | 8 / 20 | Variety of woodland habitats |
| Gray Catbird | GRCA | 5 / 25 | 8 / 31 | Dense thickets, shrubs, hedgerows |
| Blue-winged Warbler | BWWA | 5 / 25 | 7 / 20 | Brushy fields, wood edges |
| Golden-winged Warbler | GWWA | 5 / 25 | 7 / 20 | Damp, brushy fields, wood edges |
| Nashville Warbler | NAWA | 5 / 25 | 8 / 15 | Swamp and bog areas |
| Prairie Warbler | PRAW | 5 / 25 | 7 / 20 | Brushy fields, edges, small pines |
| Cerulean Warbler | CERW | 5 / 25 | 8 / 5 | Mature moist or riverside forests |
| Kentucky Warbler | KEWA | 5 / 25 | 7 / 15 | Moist deciduous woods, understory |
| Common Yellowthroat | COYE | 5 / 25 | 8 / 10 | Brushy areas, preferably wet |
| Hooded Warbler | HOWA | 5 / 25 | 7 / 25 | Moist forests with dense understory |
| Yellow-breasted Chat | YBCH | 5 / 25 | 8 / 5 | Brushy fields, thickets, wood edges |
| Scarlet Tanager | SCTA | 5 / 25 | 8 / 10 | Mature deciduous forests |
| Grasshopper Sparrow | GRSP | 5 / 25 | 8 / 31 | Hayfields, grassy pastures |
| Blue Grosbeak | BLGR | 5 / 25 | 8 / 10 | Thickets, hedgerows and edges |
| Indigo Bunting | INBU | 5 / 25 | 8 / 15 | Edges, open forest, brush areas |
| Snow Goose | SNGO | 6 / 1 | 7 / 30 | |
| Northern Shoveler | NSHO | 6 / 1 | 6 / 30 | |
| Green-winged Teal | AGWT | 6 / 1 | 6 / 30 | High ground near water |
| Lesser Scaup | LESC | 6 / 1 | 7 / 30 | |
| Common Merganser | COME | 6 / 1 | 7 / 30 | |
| Brown Pelican | BRPE | 6 / 1 | 7 / 31 | Shrubby marsh island |
| Osprey | OSPR | 6 / 1 | 8 / 15 | Marshes, tidal water bodies, channel markers |
| Mississippi Kite | MIKI | 6 / 1 | 7 / 30 | |
| Sharp-shinned Hawk | SSHA | 6 / 1 | 7 / 31 | Conifers in extensive woodlands |
| Sora | SORA | 6 / 1 | 7 / 31 | Fresh marshes, wet meadows |
| Wilson's Snipe | WISN | 6 / 1 | 7 / 15 | |
| Bonaparte's Gull | BOGU | 6 / 1 | 7 / 30 | |
| Eurasian Collared-Dove | EUCD | 6 / 1 | 7 / 30 | |
| Monk Parakeet | MOPA | 6 / 1 | 7 / 30 | |
| Yellow-bellied Sapsucker | YBSA | 6 / 1 | 8 / 31 | Mixed woods, swamps, bogs |
| Eastern Wood-Pewee | EAWP | 6 / 1 | 8 / 15 | Variety of woodland habitats |
| Blue-headed Vireo | BHVI | 6 / 1 | 8 / 20 | Coniferous or mixed woodlands |
| Red-eyed Vireo | REVI | 6 / 1 | 7 / 31 | Variety of woodland habitats |
| Purple Martin | PUMA | 6 / 1 | 6 / 25 | Open country, colonial |
| Bank Swallow | BANS | 6 / 1 | 6 / 20 | Near water with steep banks, colonial |
| Cliff Swallow | CLSW | 6 / 1 | 6 / 25 | Open country near buildings, bridges |
| Red-breasted Nuthatch | RBNU | 6 / 1 | 7 / 31 | Coniferous or mixed woods |
| Northern Parula | NOPA | 6 / 1 | 8 / 15 | Moist woods, bottomlands, spruces |
| Yellow Warbler | YWAR | 6 / 1 | 7 / 10 | Wet brushy areas, farmlands |
| Chestnut-sided Warbler | CSWA | 6 / 1 | 8 / 10 | Brushy, open second-growth, edges |
| Yellow-rumped Warbler (unid. Myrtle/Audubon's) | YRWA | 6 / 1 | 8 / 20 | |
| Bachman's Sparrow | BACS | 6 / 1 | 7 / 31 | Brushy fields, often with pines |
| Clay-colored Sparrow | CCSP | 6 / 1 | 7 / 31 | |
| Lark Sparrow | LASP | 6 / 1 | 7 / 31 | Grass with low shrubs & open ground |
| Saltmarsh Sharp-tailed Sparrow | SSTS | 6 / 1 | 8 / 10 | Salt marshes |
| Seaside Sparrow | SESP | 6 / 1 | 8 / 10 | Salt marshes |
| Swamp Sparrow | SWSP | 6 / 1 | 7 / 31 | Marshes, wet brushy areas, bogs |
| Dark-eyed Junco (Slate-colored Junco) | SCJU | 6 / 1 | 7 / 31 | Edges of northern mixed forests |
| Dickcissel | DICK | 6 / 1 | 8 / 31 | Open country, especially alfalfa |
| Orchard Oriole | OROR | 6 / 1 | 7 / 5 | Edges, hedgerows, scattered trees |
| Baltimore Oriole | BAOR | 6 / 1 | 7 / 25 | Shade trees, open deciduous woods |
| Purple Finch | PUFI | 6 / 1 | 8 / 10 | Mixed woods, parklands, residential |
| Blue-winged Teal | BWTE | 6 / 5 | 7 / 5 | High ground near water |
| Laughing Gull | LAGU | 6 / 5 | 7 / 10 | Salt marshes |
| Herring Gull | HERG | 6 / 5 | 7 / 10 | Beaches, coastal islands, spoil areas |
| Great Black-backed Gull | GBBG | 6 / 5 | 7 / 10 | Beaches, coastal islands, spoil areas |
| Common Tern | COTE | 6 / 5 | 6 / 30 | Beaches, coastal islands, spoil areas |
| Common Nighthawk | CONI | 6 / 5 | 7 / 15 | Barren country and flat roofs |
| Least Flycatcher | LEFL | 6 / 5 | 7 / 20 | Wood edges, open deciduous woods |
| Black-throated Blue Warbler | BTBW | 6 / 5 | 8 / 5 | Mixed woods with heavy understory |
| Northern Waterthrush | NOWA | 6 / 5 | 7 / 15 | Swamps and bogs, pond edges |
| Summer Tanager | SUTA | 6 / 5 | 8 / 10 | Mixed dry upland woods |
| Savannah Sparrow | SAVS | 6 / 5 | 8 / 31 | Hayfields, wet meadows, pastures |
| Ruddy Duck | RUDU | 6 / 10 | 8 / 25 | Dense marshes with open water |
| Double-crested Cormorant | DCCO | 6 / 10 | 6 / 30 | |
| American Coot | AMCO | 6 / 10 | 8 / 25 | Marshes with open water |
| Willet | WILL | 6 / 10 | 7 / 1 | Salt marshes |
| Spotted Sandpiper | SPSA | 6 / 10 | 6 / 30 | Beaches or rocky streams |
| Alder Flycatcher | ALFL | 6 / 10 | 7 / 20 | Wet brushy areas, prefers alders |
| Willow Flycatcher | WIFL | 6 / 10 | 7 / 20 | Wet to fairly dry brushy areas |
| Warbling Vireo | WAVI | 6 / 10 | 8 / 10 | Open deciduous or riverside woods |
| Blue Jay | BLJA | 6 / 10 | 9 / 5 | Variety of woodland habitats, suburbs |
| Sedge Wren | SEWR | 6 / 10 | 9 / 20 | Wet meadows, marshes |
| Veery | VEER | 6 / 10 | 8 / 10 | Moist mixed woods |
| Swainson's Thrush | SWTH | 6 / 10 | 8 / 10 | Northern conifers, esp. spruce |
| Magnolia Warbler | MAWA | 6 / 10 | 8 / 5 | Northern coniferous forests |
| Black-throated Green Warbler | BTNW | 6 / 10 | 8 / 5 | Northern coniferous or mixed woods |
| Blackburnian Warbler | BLBW | 6 / 10 | 7 / 31 | Northern coniferous or mixed woods |
| American Redstart | AMRE | 6 / 10 | 7 / 20 | Moist, deciduous forest |
| Canada Warbler | CAWA | 6 / 10 | 7 / 15 | Thick, moist forest undergrowth |
| White-throated Sparrow | WTSP | 6 / 10 | 7 / 31 | Brushy openings |
| Broad-winged Hawk | BWHA | 6 / 15 | 8 / 10 | Hilly woodlands |
| Yellow-billed Cuckoo | YBCU | 6 / 15 | 7 / 31 | Variety of forest habitats, edges |
| Olive-sided Flycatcher | OSFL | 6 / 15 | 7 / 31 | Northern conifers |
| Cedar Waxwing | CEDW | 6 / 15 | 7 / 31 | Open woodland, shade trees, streams |
| Mourning Warbler | MOWA | 6 / 15 | 7 / 31 | Brushy areas in woodlands or edges |
| Rose-breasted Grosbeak | RBGR | 6 / 15 | 8 / 10 | Edges of moist deciduous woods |
| Bobolink | BOBO | 6 / 15 | 6 / 30 | Fields, meadows, pastures |
| Pine Siskin | PISI | 6 / 15 | 8 / 31 | Northern conifers |
| American Goldfinch | AMGO | 6 / 15 | 8 / 31 | Brushy fields, edges, hedgerows |
| Purple Gallinule | PUGA | 6 / 20 | 7 / 31 | Shrubby swamps |
| Black-billed Cuckoo | BBCU | 6 / 20 | 7 / 20 | Variety of forest habitats, edges |
| Great Horned Owl | GHOW | 12 / 15 | 8 / 31 | Most upland woodland types |
|
* Alpha Codes are also known as 'banding codes' (not AOU codes, which are numeric) ** Safe dates represent a window when a singing male is assumed not to be in migration, and therefore on territory. Some atlases do not use safe dates, because they prefer (given present knowledge) not to assume migration or territorial status of all individuals. Safe dates generally apply to the Possible breeding category only when used. |
||||
| Back to: Maryland & DC 2002-2006 (published!) |