Documents • Iowa State University • Avian Archives of Iowa Online

Title	Genres	Topics	Date (Start)	Date (End)	Type	Description	Creator/Author	Birds	Locations	Locality	Habitat	Remarks

Rare bird documentation form for Black Scoter at Diamond Lake County Park, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-10-31	1986-11-03	Rare birds documentation form	Rare bird documentation form for six Black Scoters at Diamond Lake County Park in Poweshiek County, IA on October 31, 1986.	Koenig, Darwin	Black Scoter	Diamond Lake County Park	Diamond Lake County Park, Poweshiek County	lake	The documentation form by Darwin Koenig is the only one submitted and forms the basis of this record. Other observers include Edwin Miller and Doug Phillips. \| Elimination of similar species: Ruddy Duck (winter male & female)--smaller, bill flatter and lighter colored, breast and flanks whiter, overall lighter colored. Other scoters--flatter head profile; heavier, lighter colored bill; lighter colored legs; White-winged has white speculum. \| The original documentation form event lasted from 10:00:00/11:30:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Diamond Lake, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-10-31	1986-11-03	Rare birds documentation form	Rare bird documentation form for six Black Scoters at Diamond Lake in Poweshiek County, IA on October 31, 1986.	Miller, Edwin J.	Black Scoter	Diamond Lake	Diamond Lake, Montezuma IA (Poweshiek Co.)	Open water	The documentation form by Edwin Miller is the only one submitted and forms the basis of this record. Other observers include Darwin Koenig and Doug Phillips. \| Elimination of similar species: White-winged Scoter - no white on wing - or small patches of white markings on head. Ruddy Duck - much larger than Ruddy - although did see one lift tail like a ruddy. \| The original documentation form event lasted from 10:30:00/12:00:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Diamond Lake County Park in 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-10-31	1986-11-02	Manuscript, graphic, and printed material	Rare bird documentation form for six Black Scoters at Diamond Lake County Park in Poweshiek County, IA on October 31, 1986.	Phillips, Doug	Black Scoter	Diamond Lake County Park				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Coralville Reservoir, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-02	N/A	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Coralville Reservoir in Johnson County, IA on November 2, 1986.	Kent, Thomas H. (Thomas Hugh), 1934-	Black Scoter	Coralville Lake	Coralville Res., above dam, Johnson Co. IA	Reservoir	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Tom Staudt, Bernie Knight, Cal Knight, Carl Thompson, and Jim Fuller. \| Elimination of similar species: Ruddy Duck - too large and dark. Other Scoter - too small, no white in wing, face-patch that of Black Scoter. \| The original documentation form event lasted from 13:15:00/13:30:00 and 15:00:00-15:30:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Coralville Reservoir in 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-02	1986-11-05	Manuscript, graphic, and printed material	Rare bird documentation form for a Black Scoter at Coralville Reservoir in Johnson County, IA on November 2, 1986.	Staudt, Thomas J.	Black Scoter	Coralville Lake				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Big Creek State Park in 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-12	N/A	Manuscript, graphic, and printed material	Rare bird documentation form for two Black Scoters at Big Creek State Park in Polk County, IA on November 12, 1986.	Myers, Robert K.	Black Scoter	Big Creek State Park				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Big Creek State Park, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-12	1986-11-26	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Big Creek State Park in Polk County, IA on November 12, 1986.	Dinsmore, Stephen J.	Black Scoter	Big Creek State Park	Big Creek State Park, Polk Co.	large body of water	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Bob Myers, Mark Proescholdt, and Beth Proesholdt. \| Elimination of similar species: No other duck shows the combination of a dark body, a white cheek patch, and dark wings lacking speculums. \| The original documentation form event lasted from 15:45:00/16:45:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Big Creek State Park, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-12	1986-11-20	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Big Creek State Park in Polk County, IA on November 12, 1986.	Proescholdt, Mark	Black Scoter	Big Creek State Park	Big Creek State Park - (Polk Co.)	Large to medium-sized Lake with many bays	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Other observers include Beth Proescholdt, Bob Myers, and Steve Dinsmore. \| Elimination of similar species: A winter Ruddy Duck is much smaller than a scoter, has a different look than a scoter, is lighter in coloration, and the cheek patch is different color or markings of male and female Ruddy than a scoter. \| The original documentation form event lasted from 15:20:00/15:40:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Big Creek State Park in 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-12	1986-11-28	Manuscript, graphic, and printed material	Rare bird documentation form for a Black Scoter at Big Creek State Park in Polk County, IA on November 12, 1986.	Proescholdt, Beth	Black Scoter	Big Creek State Park				Iowa Ornithologists' Union \| MS 166	33	13
Black Scoter sighting details contributed by Barbara L. Wilson, December 20, 1996	Field notes	Birds--Identification Ornithology Rare birds	1986-12-20	N/A	Manuscript, graphic, and printed material	Field notes contributed by Barbara L. Wilson detailing the sighting of a Black Scoter at Hamburg in Fremont County, IA on December 20, 1986.	Wilson, Barbara L.	Black Scoter	Hamburg				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Hamburg exit I-29, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-12-20	N/A	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Hamburg exit on I-29 in Fremont County, IA on December 20, 1986.	Bray, Tanya	Black Scoter	Interchange 1	Hamburg exit of I-29, Fremont County		The documentation form by Tanya Bray is the only one submitted and forms the basis of this record. Other observers include Babs Padelford, Loren Padelford, Jerry Toll, Ross Silcock, and Barbara Wilson. \| Elimination of similar species: White-winged + Surf Scoters eliminated by head pattern described above. \| The original documentation form event lasted from 13:35:00/13:40:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Saylorville Reservoir, 1987	Field notes	Birds--Identification Ornithology Rare birds	1987-10-25	N/A	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Saylorville Reservoir in Polk County, IA on October 25, 1987.	Dinsmore, Stephen J.	Black Scoter	Saylorville Lake	Saylorville Reservoir, Polk Co.-off Jester Park	swimming with other ducks on large reservoir	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Andrew S. Fix and Paul Martsching. \| Elimination of similar species: Other scoters eliminated by the dark wings and the distinct throat patch. \| The original documentation form event lasted from 12:30:00/12:50:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Saylorville Reservoir, 1987	Field notes	Birds--Identification Ornithology Rare birds	1987-10-28	1987-11-26	Rare birds documentation form	Rare bird documentation form for five Black Scoters at Saylorville Reservoir in Polk County, IA on October 28, 1987.	Dinsmore, Stephen J.	Black Scoter	Saylorville Lake	Saylorville Reservoir, Polk Co.-above dam	swimming on large reservoir	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: Other scoters eliminated by the dark wings and distinct throat patch. The orange knob on the male's bill eliminated other scoters. \| The original documentation form event lasted from 15:10:00/15:20:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at DeSoto National Wildlife Refuge, 1987	Field notes	Birds--Identification Ornithology Rare birds	1987-10-31	1987-11-26	Rare birds documentation form	Rare bird documentation form for six Black Scoters at DeSoto National Wildlife Refuge in Harrison County, IA on October 31, 1987.	Dinsmore, Stephen J.	Black Scoter	DeSoto National Wildlife Refuge	DeSoto NWR, Harrison Co.-seen on both Iowa and Nebraska sides of oxbow at the Lakeview overlook	swimming on lake with other ducks	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Andy Fix and fourteen members of the Big Bluestem Audubon Society. \| Elimination of similar species: Other scoters eliminated by the white patch on the throat and by the dark wings (seen on only one bird). Note that we had four Surf Scoters for direct comparison. \| The original documentation form event lasted from 10:00:00/10:40:00.	Iowa Ornithologists' Union \| MS 166	33	13
Black Scoter sighting details contributed by Barbara L. Wilson, November 14, 1987	Field notes	Birds--Identification Ornithology Rare birds	1987-11-14	N/A	Manuscript, graphic, and printed material	Field notes contributed by Barbara L. Wilson detailing the sighting of a Black Scoter at Saylorville Reservoir in Polk County, IA on November 14, 1987.	Wilson, Barbara L.	Black Scoter	Saylorville Lake				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Jester Park at Saylorville Lake, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-04-09	N/A	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Jester Park at Saylorville Lake in Polk County, IA on April 9, 1989.	Johnson, Ann	Black Scoter	Jester Park	Jester Park area of Saylorville Lake, Polk County, IA	Large impoundment with much open water	The documentation form by Ann Johnson is the only one submitted and forms the basis of this record. Other observers include Andy Fix. \| Elimination of similar species: The coot was eliminated by bill color and general body shape. Other scoters were eliminated by the rounder head shape, lack of any white on the head or body, and by the distinctive bill color and pattern. \| The original documentation form event lasted from 17:20:00/17:30:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Jester Park at Saylorville Lake, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-04-09	1989-04-23	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Jester Park at Saylorville Lake in Polk County, IA on April 9, 1989.	Fix, Andrew S.	Black Scoter	Jester Park	50 ft. off Jester State park South end - Saylorville Reservoir	water	The documentation form by Andrew S. Fix is the only one submitted and forms the basis of this record. Other observers include Ann Johnson, Bery Engebretsen, and Steve Dinsmore. \| Elimination of similar species: Other breeding plumage male scoters have characteristic white markings on head, coots have a white bill, moorhens have white along the side. \| The original documentation form event lasted from 16:30:00/17:00:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at MidAmerican Energy Ponds in 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-05-12	1989-05-13	Manuscript, graphic, and printed material	Rare bird documentation form for two separate sightings for a Black Scoter at MidAmerican Energy Ponds in Pottawattamie County, IA on May 12 and 13, 1989.	Padelford, Babs Padelford, Loren	Black Scoter	MidAmerican Energy Ponds				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at MidAmerican Energy Ponds, 1989	Field notes	Birds--Identification Ornithology Rare birds	1989-10-29	N/A	Rare birds documentation form	Rare bird documentation form for a Black Scoter at MidAmerican Energy Ponds in Pottawattamie County, IA on October 29, 1989.	Padelford, Babs Padelford, Loren	Black Scoter	MidAmerican Energy Ponds	Iowa Power and Light North Settling pond, Pottawattamie County		The documentation form by Babs and Loren Padelford is the only one submitted and forms the basis of this record. \| Elimination of similar species: Larger than Ring-necked ducks which were also present for comparison. It had rounded forehead as opposed to the sloping forehead of the White-winged and Surf Scoters. \| The original documentation form event lasted from 11:15:00/12:15:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Rathbun Dam, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-12-15	1990-12-17	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Rathbun Dam in Appanoose County, IA on December 15, 1990.	Cummins, Raymond L.	Black Scoter	Rathbun Dam	Rathbun Dam Appanoose Co., Iowa	Open water	The documentation form by Ray Cummins is the only one submitted and forms the basis of this record. Other observers include Paul and Deb Egeland. \| Elimination of similar species: Whitewinged scoter by all black wings. Surf scoter by white solid cheek patch. Ruddy Duck by size and black belly. \| The original documentation form event lasted from 07:30:00/07:35:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Ventura Marsh in 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-11-04	N/A	Manuscript, graphic, and printed material	Rare bird documentation form for a Black Scoter at Ventura Marsh in Cerro Gordo County, IA on November 4, 1990.	LaGrange, Ted	Black Scoter	Ventura Marsh Wildlife Management Area				Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Rathbun Lake, 1990	Field notes	Birds--Identification Ornithology Rare birds	1990-12-15	N/A	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Rathbun Lake in Appanoose County, IA on December 15, 1990.	Egeland, Paul	Black Scoter	Rathbun Lake	Rathbun Lake just off face of Rathbun Dam	Lake on Rock face of Dam	The documentation form by Paul A Egeland is the only one submitted and forms the basis of this record. Other observers include Deb Egeland and Ray Cummins. \| Elimination of similar species: Consulted "Birds of North America" after by Chander S. Robbins, etc. Field notes were taken. \| The original documentation form event lasted from 07:30:00/07:34:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Montrose, 1991	Field notes	Birds--Identification Ornithology Rare birds	1991-03-30	N/A	Rare birds documentation form	Rare bird documentation form for two Black Scoters at Montrose in Lee County, IA on March 30, 1991.	Kent, Thomas H. (Thomas Hugh), 1934-	Black Scoter	Montrose	Montrose, Lee County, IA	Mississippi River Pool	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Dick Tetrault. \| Elimination of similar species: The only other duck with similar face pattern is Ruddy Duck. Male Ruddy Ducks in the area had white face patches, but the patches were more horizontal, bill were sloped, necks shorter, tails cocked, and much smaller in flight. Female Ruddys had a much grayer face patch and gray on the sides. \| The original documentation form event lasted from 17:30:00/18:00:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Pool 19, 1991	Field notes	Birds--Identification Ornithology Rare birds	1991-03-31	N/A	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Pool 19 in Lee County, IA on March 31, 1991.	Fuller, James L	Black Scoter	Pool 19	Pool #19 of Mississippi River, Lee County		The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. \| Elimination of similar species: The only bird that this bird should be confused with would be ruddy duck, and they were in close proximity so that good comparisons could be made. The white area on ruddy duck's head does not extend onto the neck, they are smaller in size, have a relatively larger bill, and a stiff raised tail, all features which differ from this bird. \| The original documentation form event lasted from 06:35:00/06:50:00.	Iowa Ornithologists' Union \| MS 166	33	13
Rare bird documentation form for Black Scoter at Pleasant Creek Lake State Park, 1992	Field notes	Birds--Identification Ornithology Rare birds	1992-10-24	1992-10-26	Rare birds documentation form	Rare bird documentation form for a Black Scoter at Pleasant Creek Lake State Park in Linn County, IA on October 24, 1992.	Fuller, James L	Black Scoter	Pleasant Creek State Park	Pleasant Creek Lake State Park, Linn County		The documentation form by Jim Fuller is the only one submitted and forms the basis of this record. Other observers include Pete Wickham, John Daniel, Tom Kent, and Randy Pinkston. \| Elimination of similar species: The only other waterfowl with a white pattern on the side of face and neck is a Ruddy Duck, and a male of that species was always within a few feet during the observation. Differences between the two were general size, relative bill size, tail in the air, white pattern that didn't extend nearly as far down the neck, and generally lighter coloration of the ruddy. \| The original documentation form event lasted from 10:29:00/10:43:00.	Iowa Ornithologists' Union \| MS 166	33	13