Winter Bird Count 1990-1999, ARCHBOLD BIOLOGICAL STATION, Lake Placid, Florida, Fred E. Lohrer, compiler, 13 October 2004, Fred E. Lohrer.

AVIAN ECOLOGY LAB:
Archbold Biological Station, P.O. Box 2057, Lake Placid, Florida 33862 USA
Phone: 863-465-2571 FAX: 863-699-1927 send e-mail

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Annual Winter Bird Count, 1990-1999,
Archbold Biological Station, Lake Placid, Florida

Project Director: John W. Fitzpatrick, Cornell University
Database Manager: Fred E. Lohrer

During 1990-1999, 10 annual Winter Bird Counts (WBC) were conducted in mid-January, on 4800 acres of Archbold’s main property (but excluding the southeastern-most Hicoria Tract), using National Audubon Society Christmas Bird Count (CBC) methods. The effort was to count all birds at the Station. The WBCs gave us a good assessment of Archbold’s winter bird community and a better understanding of species population trends and relative abundance. The Archbold data can be compared with the adjacent and overlapping Lake Placid CBC, conducted during the same years in late December, and with many other Florida CBCs. Tables 1,2,& 3, below, were compiled by Fred Lohrer in February 1999. See Archbold's Biennial Report 1999-2000 for some preliminary analysis of the count data. See also; National Biological Information Infrastructure - Metadata Clearinghouse.

metadata | no. species seen on no. counts | annual species totals
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Metadata

Study Area. During 1990-1999, 10 annual Winter Bird Counts (WBC) were conducted on 4800 acres of Archbold’s main property (but excluding the southeastern-most Hicoria Tract). The count area was divided into 15 units following property tract boundaries (see map [b]).
Dates. Counts were conducted in mid-January. For all years counts were conducted on days with normal seasonal temperatures and, but for one year (1994), on days with little wind (see Table 1 below).
Methods. Counts were conducted using National Audubon Society Christmas Bird Count (CBC) methods. The effort was to count all birds at the Station.
Observers. Biases from observer variability were minimized by using, as much as possible, the same observers year after year in the same property unit, and usually units the observers were familiar with from their field research. Two observers participated in all 10 counts, one in 9 counts, and several in 6 counts. Overall 55 ornithologists and field ecologists participated (see Table 1 below).

Table 1. Dates, Weather, & Participants (n=55).

	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999
January	7	11	9	8	19	23	15	13	9	15
Max. F	86	85	81	85	65	79	74	70	77	74
Min. F	62	61	46	65	45	37	32	53	59	52
Com- ments	fog AM, PMstrong SW wind	sunny, PM mod. SW wind	--	PM very windy	NE wind, 25+ mph all day	PM strong SW wind	clear to 1600, no wind	overcast NE wind	Ideal; AMclear calm	overcast calm
Party 1	FEL	FEL	FEL	FEL	FEL	FEL	FEL	FEL	DRB PMB	FEL
2	GEW	GEW	GEW	GEW	GEW	GEW	GEW	GEW HBT	GEW	GEW
3	JWF	JWF	JWF	JWF	JWF	JWF	JWF	JWF	JWF	JWF
3a	JWF ML	JWF	JWF	JWF	JWF	DEW TPG	DEW TPG BM	CSA	LAR	RLC
4	LAH	MAM	DEW TPG	KAT	KAT	KAT JJ	KAT	KAT	KAT BSN	RML VAH
5	SRP	MAM	DEW TPG	KAT	KAT	KAT JJ	KAT	KAT	KAT BSN	RML VAH
6	MAM PLM	WGA	WGA JB	WGA	WGA JPH EDH	JMG WJK	JMG	RY	RGSR	RGSR
7	RLC	MAM	JMG	JMG PM	MAG	MAG	MAG	RB	AMF TLG	AMF TLG
8	ML	ELM JMG	JDG	BP	BP	BP	BP	BP	BP	MAM
9	BAK	ELM JMG	JDG	BP	BP	BP	BP	BP	BP	DAA KBB
10	MMcP GMcP	ELM JMG	RB CC	RB	RB LMR	RB LNP MM	AMF LMW	AMF	RB	RB
11	MAD STD	MAD	MAD	MAD STD	LAR DLL	LAR DLL	LAR	DEB	DLL DS	DS PMB
12	RLM	RLM	RLM	RLM	DFS	MAM LMW	MAM JMG	DEW TPG	DEW BM	DEW TPG
12a	RLM	RBR	SS	SS	SJS	JSG	JPH	JPH	JPH EDH	JPH EDH
13	--	--	--	JAW	JAW	JAW	JAW	JAW	JAW	JAW

David A. Aborn, Warren G. Abrahamson, Curtis S. Adkisson, David R. Barber, Patricia M. Barber, Reed Bowman, Kim Boots Brand, Jonathan Brown, Dirk E. Burhans, Christine Champ, Robert L. Curry, Mark A. Deyrup, Stephen L. Deyrup, John W. Fitzpatrick, Arthur L. Fleischer, Mary L. Garvin, Tina L. Gionfriddo, Jill M. Goldstein, John D. Grahame, Jon S. Greenlaw, Elizabeth D. Hailman, Jack P. Hailman, Valerie A. Haines, Lisa A. Hanners, Jodie Jawor, William J. Keating, Barbara A. Kittleson, Ross M. Lein, David L. Leonard, Manuel Lopez, Michael A. MacMillian, Gail A. McPeek, Mark A. McPeek, Ben Marks, Paige L. Martin, Piotr Matyjasiak, Mary Mitchell, Ronald L. Mumme, Brian S. Nelson, Steve R. Patton, Bill Pranty, Lisa M. Richman, Larry A. Riopelle, Ralph G.S. Risch, Richard B. Root, Sarah Sargent, Steven L. Schoech, Douglas F. Stotz, Diana Swan, Keith L. Tarvin, Harrison B. Tordoff, Lee M. Walton, Glen E. Woolfenden, Janet A. Woolfenden, Rebecca Yahr.

Table 2. Total species seen on all counts = 113. top

Species seen on all 10 counts (n=55, 48.6% of 113): Anhinga, Black Vulture, Turkey Vulture, Sharp-shinned Hawk, Cooper's Hawk, Red-tailed Hawk, American Kestrel, Northern Bobwhite, Sandhill Crane, Killdeer, Mourning Dove, Common Ground-Dove, Eastern Screech-Owl, Great Horned Owl, Whip-poor-will, Belted Kingfisher, Red-headed Woodpecker, Red-bellied Woodpecker, Downy Woodpecker, Hairy Woodpecker, Northern Flicker, Pileated Woodpecker, Eastern Phoebe, Great Crested Flycatcher, Tree Swallow, Blue Jay, Florida Scrub-Jay, American Crow, Fish Crow, Carolina Wren, House Wren, Ruby-crowned Kinglet, Blue-gray Gnatcatcher, Eastern Bluebird, Hermit Thrush, American Robin, Gray Catbird, Northern Mockingbird, Brown Thrasher, Loggerhead Shrike, White-eyed Vireo, Yellow-rumped Warbler, Yellow-throated Warbler, Pine Warbler, Palm Warbler, Ovenbird, Common Yellowthroat, Northern Cardinal, Eastern Towhee, Chipping Sparrow, Savannah Sparrow, Grasshopper Sparrow, Red-winged Blackbird, Eastern Meadowlark, Common Grackle.
On 9 counts (n=10, 8.8%): Great Blue Heron, Wood Duck, Northern Harrier, Common Snipe, White-winged Dove, Sedge Wren, Blue-headed Vireo, Boat-tailed Grackle, Brown-headed Cowbird, American Goldfinch.
On 8 counts (n=6, 5.3%): Little Blue Heron, Osprey, Yellow-bellied Sapsucker, European Starling, Prairie Warbler, Swamp Sparrow.
On 7 counts (n=3, 2.6%): Great Egret, Red-shouldered Hawk, Field Sparrow.</