RTWBC - Census Spreadsheet downloads

Records
May Census Last updated 6/9/07

See records for 1919-1958(pdf format)

1959-2007(pdf format)

6/9/07
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	In 1919, local birder Allen Frost suggested to Maunsell Crosby that an annual May Census be conducted in Dutchess County. Crosby held the census each year until his death in 1931, after which Allen Frost continued until his own death in 1946. At this point, Dutchess County bird records were passed to Ralph T. Waterman, who then continued the census with his son Otis. Subsequently, the bird club that Mr. Waterman founded in 1958 assumed responsibility for Dutchess County records, including the May Census. Each year, usually on the weekend closest to May 15th, teams of birders fan out across the county to count all the birds they see. The results of the census, along with other records, can then be analyzed to identify population trends and provide evidence of the impact of environmental changes in the area.
Green Heron , Lime Kiln Road, Dover Photo by Carena Pooth, May 12, 2007
Below is the compilation of the May 2007 Census for Dutchess County. For detailed data on earlier years, click on one of the links above.

Dutchess County May Bird Census - May 12, 2007 6/9/07

For a breakdown of the results by reporting group/area, see the Summary Report.

Weather: Clear with a mild breeze Temperature High 50s to low 70s

SPECIES	# Found 2007	# of Yrs Found (1959-2007)	Avg. per yr. when Found	Last Year Found	SPECIES	# Found 2007	# of Yrs Found (1959-2007)	Avg. per yr. when Found	Last Year Found
Snow Goose		5	1.6	2003	Eastern Kingbird	75	49	75.3	all
Brant	36	8	136.1	2006	White-eyed Vireo	3	21	1.8	2006
Canada Goose	880	49	317.0	all	Yellow-throated Vireo	37	49	25.6	all
Mute Swan	37	30	31.2	2006	Blue-headed Vireo	8	46	6.7	2006
Wood Duck	110	49	38.7	all	Warbling Vireo	124	49	45.2	all
American Wigeon		5	1.6	1991	Philadelphia Vireo		19	1.1	2006
American Black Duck		47	19.6	2006	Red-eyed Vireo	72	49	59.6	all
Mallard	225	49	122.0	all	Blue Jay	273	49	221.5	all
Blue-winged Teal	2	35	4.1	2002	American Crow	476	49	262.7	all
Northern Shoveler		3	1.0	2000	Fish Crow	9	39	8.7	2006
Northern Pintail		1	2.0	1997	Common Raven	9	16	5.6	2006
Green-winged Teal		17	2.6	2000	Horned Lark	1	34	5.5	2006
Canvasback		2	1.5	1976	Purple Martin	6	47	17.3	2006
Ring-necked Duck		4	2.5	1997	Tree Swallow	273	49	249.7	all
Greater Scaup		5	2.4	2006	N. Rough-winged Swallow	39	49	24.9	2006
Lesser Scaup		3	1.0	1994	Bank Swallow	633	49	175.2	all
White-winged Scoter		2	7.5	2000	Cliff Swallow		30	8.2	2006
Common Goldeneye		1	2.0	1968	Barn Swallow	292	49	175.2	all
Hooded Merganser		11	1.3	2006	Black-capped Chickadee	284	49	126.6	all
Common Merganser	6	19	2.7	2006	Tufted Titmouse	242	49	72.1	all
Red-breasted Merganser		3	1.7	1978	Red-breasted Nuthatch	1	25	4.3	2006
Ruddy Duck	1	5	1.4	2006	White-breasted Nuthatch	60	49	37.2	all
Ring-necked Pheasant	12	49	19.4	all	Brown Creeper	2	49	7.0	all
Ruffed Grouse	1	47	9.9	2006	Carolina Wren	64	38	16.1	2006
Wild Turkey	113	25	35.9	2006	House Wren	116	49	72.3	2005
Northern Bobwhite		30	4.0	2002	Winter Wren		44	4.5	2006
Red-throated Loon		2	3.0	1973	Sedge Wren		1	1.0	1980
Common Loon		20	2.0	2006	Marsh Wren	10	49	16.8	all
Pied-billed Grebe		22	2.1	2000	Golden-crowned Kinglet		21	2.2	2006
Horned Grebe		2	1.0	1981	Ruby-crowned Kinglet	4	37	6.5	2006
Double-crested Cormorant	123	34	17.1	2006	Blue-gray Gnatcatcher	51	41	23.7	2006
American Bittern		37	3.0	2006	Eastern Bluebird	92	49	49.2	all
Least Bittern		22	1.6	2005	Veery	101	49	71.5	all
Great Blue Heron	69	48	27.4	2006	Gray-cheeked Thrush	1	23	2.0	2006
Great Egret	1	6	1.5	2006	Swainson's Thrush	4	48	8.2	2006
Snowy Egret		3	2.7	2006	Hermit Thrush	4	41	3.4	2006
Little Blue Heron		3	1.0	2006	Wood Thrush	187	49	129.1	all
Cattle Egret		3	1.7	2006	American Robin	769	49	385.4	all
Green Heron	12	48	10.6	2006	Gray Catbird	513	49	272.4	all
Black-crowned Night-Heron		15	1.5	2006	Northern Mockingbird	113	47	60.9	2006
Glossy Ibis		2	1.0	1984	Brown Thrasher	11	49	27.8	2006
Black Vulture	5	13	4.8	2006	European Starling	615	49	480.8	all
Turkey Vulture	101	49	46.7	all	American Pipit		17	9.9	2006
Osprey	2	40	3.5	2006	Cedar Waxwing	39	47	40.6	2005
Bald Eagle	1	12	1.8	2006	Blue-winged Warbler	109	49	82.2	all
Northern Harrier	1	29	1.9	2006	Golden-winged Warbler		42	7.7	2005
Sharp-shinned Hawk	3	30	2.4	2006	Brewster's Warbler (hybrid)	1	15	1.1	2006
Cooper's Hawk	11	25	3.0	2006	Lawrence's Warbler (hybrid)		7	1.0	2006
Northern Goshawk	2	15	1.3	2005	Tennessee Warbler	4	47	17.4	2006
Red-shouldered Hawk	6	25	4.0	2006	Nashville Warbler	4	45	8.0	2006
Broad-winged Hawk	4	46	4.3	2006	Northern Parula	23	48	15.1	2006
Red-tailed Hawk	81	49	30.5	all	Yellow Warbler	314	49	185.7	all
Golden Eagle		2	1.0	1995	Chestnut-sided Warbler	42	49	51.9	all
American Kestrel	4	49	10.7	all	Magnolia Warbler	23	49	16.8	all
Merlin	1	4	1.0	1995	Cape May Warbler	2	40	4.2	2006
Peregrine Falcon		1	1.0	2005	Black-throated Blue Warbler	34	49	18.4	all
King Rail		2	1.5	1990	Yellow-rumped Warbler	72	49	92.6	all
Virginia Rail	3	47	4.2	2006	Black-throated Green Warbler	44	49	33.3	2006
Sora		35	2.4	2006	Blackburnian Warbler	6	47	10.0	2006
Common Moorhen		29	2.8	2006	Yellow-throated Warbler		2	1.0	2006
American Coot	1	12	1.3	1993	Pine Warbler	5	21	4.7	2005
Black-bellied Plover		3	1.7	1996	Prairie Warbler	84	49	48.7	all
Semipalmated Plover	1	17	1.9	2006	Palm Warbler	4	11	1.5	2006
Killdeer	59	49	39.1	all	Bay-breasted Warbler	1	43	6.3	2004
Spotted Sandpiper	28	49	20.3	all	Blackpoll Warbler	12	43	9.1	2006
Solitary Sandpiper	8	49	17.9	all	Cerulean Warbler		41	4.3	2006
Greater Yellowlegs	2	46	8.0	2006	Black-and-white Warbler	66	49	50.2	2005
Willet		1	1.0	1979	American Redstart	160	49	102.8	all
Lesser Yellowlegs	2	38	4.4	2006	Prothonotary Warbler		3	1.0	2006
Semipalmated Sandpiper	1	18	4.3	2006	Worm-eating Warbler	6	47	6.3	2006
Least Sandpiper	46	45	31.6	2006	Ovenbird	124	49	66.1	all
Pectoral Sandpiper		24	3.9	2006	Northern Waterthrush	7	46	7.2	2005
Dunlin		1	1.0	1986	Louisiana Waterthrush	17	49	14.0	2005
Short-billed Dowitcher		2	8.0	1982	Kentucky Warbler		13	1.2	2004
Wilson's Snipe	1	38	3.2	2006	Connecticut Warbler		5	1.0	2006
American Woodcock	13	49	5.4	all	Mourning Warbler	1	7	1.1	2006
Wilson's Phalarope		1	1.0	1965	Common Yellowthroat	185	49	125.2	all
Red Phalarope		1	1.0	2006	Hooded Warbler	12	34	3.6	2006
Laughing Gull		1	1.0	1963	Wilson's Warbler	3	44	4.1	2005
Bonaparte's Gull		2	2.5	2006	Canada Warbler	5	48	9.8	2005
Ring-billed Gull	126	43	37.9	2006	Yellow-breasted Chat		10	1.7	2006
Herring Gull	14	49	33.8	all	Summer Tanager		1	1.0	2006
Great Black-backed Gull	9	42	9.5	2005	Scarlet Tanager	99	49	62.2	2005
Black-legged Kittiwake		1	2.0	1971	Eastern Towhee	131	49	92.6	all
Black Tern		6	2.2	2005	American Tree Sparrow		5	2.4	2006
Common Tern		2	1.5	2006	Chipping Sparrow	297	49	129.5	all
Rock Pigeon	256	47	130.6	2006	Field Sparrow	81	49	44.2	all
Mourning Dove	300	49	177.8	all	Vesper Sparrow	1	34	4.6	2006
Yellow-billed Cuckoo	15	39	5.7	2006	Savannah Sparrow	16	49	15.2	2006
Black-billed Cuckoo	8	44	5.8	2005	Grasshopper Sparrow	3	24	3.1	2006
Barn Owl		3	1.3	2006	Fox Sparrow		8	1.0	2006
Eastern Screech-Owl		33	1.5	2006	Song Sparrow	233	49	168.3	all
Great Horned Owl	5	46	2.9	2006	Lincoln's Sparrow	1	22	1.5	2006
Barred Owl	10	47	4.3	2006	Swamp Sparrow	79	49	52.9	all
Long-eared Owl		1	1.0	never	White-throated Sparrow	26	49	28.2	all
Common Nighthawk		33	7.5	2006	White-crowned Sparrow	5	48	14.1	2006
Whip-poor-will	2	46	2.4	2006	Dark-eyed Junco	1	35	2.5	2006
Chimney Swift	71	49	80.9	all	Northern Cardinal	308	49	118.5	2005
Ruby-throated Hummingbird	24	49	8.6	2005	Rose-breasted Grosbeak	157	49	107.2	all
Belted Kingfisher	12	49	11.1	all	Blue Grosbeak		1	1.0	2006
Red-headed Woodpecker		15	1.3	2006	Indigo Bunting	23	47	14.2	2006
Red-bellied Woodpecker	163	34	49.8	2006	Bobolink	98	49	119.9	all
Yellow-bellied Sapsucker	19	20	3.7	2006	Red-winged Blackbird	1388	46	1256.7	2005
Downy Woodpecker	91	49	50.8	all	Eastern Meadowlark	11	49	37.6	all
Hairy Woodpecker	21	49	16.9	all	Rusty Blackbird	3	22	3.9	2006
Northern Flicker	72	49	80.1	2005	Common Grackle	667	49	447.6	all
Pileated Woodpecker	25	49	12.0	all	Brown-headed Cowbird	202	49	177.6	all
Olive-sided Flycatcher	1	22	1.1	2003	Orchard Oriole	12	38	3.4	2006
Eastern Wood-Pewee	12	47	12.0	2006	Baltimore Oriole	334	49	162.3	all
Yellow-bellied Flycatcher		11	1.2	1993	Purple Finch	3	49	22.2	2005
Acadian Flycatcher		12	2.2	2006	House Finch	131	43	137.4	2005
Alder Flycatcher	1	10	1.9	2006	Red Crossbill		3	2.0	2006
Willow Flycatcher	2	32	2.7	2006	Pine Siskin		15	24.9	2002
Least Flycatcher	44	49	36.7	all	American Goldfinch	340	49	274.1	all
Eastern Phoebe	100	49	59.5	all	Evening Grosbeak		12	18.7	1987
Great Crested Flycatcher	76	49	50.0	2005	House Sparrow	179	49	170.3	all

Total Birds	15305
Total Species	161
Number of Field Observers	47
Number of Groups	11
Date of Count	12
Feeder Watchers	24

Compiled by Bill Case and Carena Pooth

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