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 Lesser Black-backed Gull at Lock and Dam 15, 1992	Field notes	Birds--Identification Ornithology Rare birds	1992-01-17	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Lock and Dam 15 in Davenport in Scott County, IA on January 17, 1992.	Kent, Thomas H. (Thomas Hugh), 1934-	Lesser Black-backed Gull	Lock and Dam 15	Above Lock + Dam 15, Davenport, IA	Frozen river	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Jim Fuller. \| Elimination of similar species: Size and leg color eliminate other dark mantled gulls. \| The original documentation form event lasted from 13:30:00/14:30:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Mississippi River between Bettendorf, IA and Moline, IL, 1992	Field notes	Birds--Identification Ornithology Rare birds	1992-01-11	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Mississippi River between Bettendorf in Scott County, IA and Moline in Rock Island County, IL on January 11, 1992.	Petersen, Peter C.	Lesser Black-backed Gull	Bettendorf Moline	Miss. R. between Bettendorf + Moline, Scott + R.I. Cos.	river channel	The documentation form by Peter C. Petersen is the only one submitted and forms the basis of this record. \| Elimination of similar species: Great Black-backed - back not black, too small. Slaty-backed - a bit small, trailing edge of wing with narrow, not wide, white edge. Western - a bit small bill not larger + heavier than the several nearby Herrings. \| The original documentation form event lasted from 08:50:00/09:00:00.	Iowa Ornithologists' Union \| MS 166	34	36
Details for rare bird sighting, Jim Fuller, 1992	Field notes	Birds--Identification Ornithology Rare birds	1992-01-05	N/A	Manuscript, graphic, and printed material	Field report for sighting of a Lesser Black-backed Gull at Lock and Dam 14 and at Moline Riverfront on January 5, 1992, contributed by Jim Fuller. Other observers include Jane Fuller and Carol Thompson.	Fuller, James L	Lesser Black-backed Gull	Lock and Dam 14 Moline				Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Cedar Lake, 1992	Field notes	Birds--Identification Ornithology Rare birds	1992-01-05	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Cedar Lake in Linn County, IA on January 5, 1992.	Kent, Thomas H. (Thomas Hugh), 1934-	Lesser Black-backed Gull	Cedar Lake	Cedar Lake, Linn Co., Iowa	backwater lake and cooling pond with some ice	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. \| Elimination of similar species: The leg color and size eliminate other dark mantled gulls. \| The original documentation form event lasted from 09:50:00/10:00:00 and 10:30:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Saylorville Reservoir, 1986	Field notes	Birds--Identification Ornithology Rare birds	1986-11-29	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Saylorville Reservoir in Polk County, IA on November 29, 1986.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Saylorville Lake	Saylorville Reservoir, Polk Co.	sitting on ice above dam	The documentation form by Steve Dinsmore is the only one submitted and forms the basis of this record. Other observers include Peter Wickham, Mark Brogie, Barb Wilson, Tanya Bray, and Bery Engebretsen. \| Elimination of similar species: Great Black-backed Gull was eliminated by the smaller size, contrast between the wingtips and the rest of the wing, and by the heavy streaking on the head (head should be mostly white on a Great Black-backed Gull). California Gull was eliminated by the darker mantle, darker underwing and dark carpal bar, lack of a dark spot on the bill, and by the dark smudge at the base of the bill (this is characteristic of 3rd summer Lesser Black-backed Gulls and is never present on California Gulls). \| The original documentation form event lasted from 10:08:00/12:10:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 15, 1995	Field notes	Birds--Identification Ornithology Rare birds	1995-02-05	1995-02-21	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Lock and Dam 15 in Scott County, IA on February 5, 1995 and February 12, 1995.	Fuller, James L	Lesser Black-backed Gull	Lock and Dam 15	Mississippi River above Lock & Dam #15 (Scott County)		The documentation form by James Fuller is the only one submitted and forms the basis of this record. Other observers include Jim Scheib, Thomas Kent, Dan Dorrance, Barker, Peter C. Petersen, Eloise Armstrong, and Eugene Armstrong. \| Elimination of similar species: The only other dark mantled gull with yellow legs is the Yellow-footed Gull. That bird has never been seen away from the extreme southwest portion of the country, and it should be much larger. \| The original documentation form event lasted from 08:30:00/09:00:00 on February 5, 1995 and 11:40:00/11:55:00 on February 12, 1995.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 15, 1995	Field notes	Birds--Identification Ornithology Rare birds	1995-02-04	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Lock and Dam 15 in Scott County, IA on February 4, 1995.	Kent, Thomas H. (Thomas Hugh), 1934-	Lesser Black-backed Gull	Lock and Dam 15	Above Lock and Dam 15, Davenport, Scott Co., IA	Mississippi River, river open.	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include several unnamed people. \| Elimination of similar species: The size and mantle color exclude Great Black-backed Gull. The mantle was too dark for a California Gull. Slaty-backed Gull would likely appear larger, have a darker mantle, and more white in tertials. \| The original documentation form event lasted from 12:30:00/13:00:00 estimated.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Lindsay Park Harbor in 1995	Field notes	Birds--Identification Ornithology Rare birds	1995-02-03	1995-02-16	Manuscript, graphic, and printed material	Rare bird documentation form for a Lesser Black-backed Gull at Lindsay Park Harbor in Scott County, IA on February 3 and 16, 1995.	Petersen, Peter C.	Lesser Black-backed Gull	Lindsay Park				Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 14, 1995	Field notes	Birds--Identification Ornithology Rare birds	1995-12-24	N/A	Rare birds documentation form	Rare bird documentation form for Lesser Black-backed Gull at Lock and Dam 14 in Scott County, IA on December 24, 1995.	Kent, Thomas H. (Thomas Hugh), 1934-	Lesser Black-backed Gull	Lock and Dam 14	Lock + Dam 14, Scott Co.	Mississippi R., on ice in backwater near dam	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. \| Elimination of similar species: Size, yellow legs, not pure black eliminates other dark-mantled gulls. \| The original documentation form event lasted from 08:40:00/08:50:00 approximately.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull on the Mississippi River at Davenport, 1996	Field notes	Birds--Identification Ornithology Rare birds	1996-01-07	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull on the Mississippi River at Davenport in Scott County, IA on January 7, 1996.	Edwards, Chris	Lesser Black-backed Gull	Davenport	Mississippi River, Davenport, Scott Co.	River.	The documentation form by Chris Edwards is the only one submitted and forms the basis of this record. Other observers include Curtis Nelson. \| Elimination of similar species: Great Black-backed Gull is much larger, has a blacker back, and pale pink legs. Herring Gull has a lighter gray mantle and pink legs. \| The original documentation form event lasted from 13:45:00/15:00:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Ottumwa, 1997	Field notes	Birds--Identification Ornithology Rare birds	1997-01-06	1997-01-07	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Ottumwa in Wapello County, IA on January 6, 1997.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Ottumwa	Ottumwa, Wapello Co., IA	river	The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. \| Elimination of similar species: The bird was in the company of Ring-billed and Herring gulls which were easily eliminated on the basis of mantle color. California Gull is slightly smaller, is lighter-mantled, and shows more white in the primaries. Great-black-backed, Slaty-backed, and Western gulls are all larger and have heavier bills. \| The original documentation form event lasted from 15:10:00/15:30:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Red Rock Reservoir, 1997	Field notes	Birds--Identification Ornithology Rare birds	1997-12-26	1998-01-06	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Red Rock Reservoir in Marion County, IA on December 26, 1997 and December 30, 1997.	Dinsmore, Stephen J.	Lesser Black-backed Gull	Lake Red Rock	Red Rock Reservoir, Marion Co., IA (below dam)	river below dam	The documentation form by Stephen J. Dinsmore is the only one submitted and forms the basis of this record. Other observers include James J. Dinsmore, Kay Niyo, and many other observers. \| Elimination of similar species: The combination of size, dark gray mantle, yellow legs and bill pattern eliminates other gulls, especially Great Black-backed, California, and Slaty-backed. \| The original documentation form event lasted from 14:05:00/16:55:00 on December 26, 1997 and 13:40:00/16:05:00 on December 30, 1997.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Red Rock Dam, 1997	Field notes	Birds--Identification Ornithology Rare birds	1997-12-27	1997-12-30	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Red Rock Dam in Marion County, IA on December 27, 1997.	Proescholdt, Mark	Lesser Black-backed Gull	Red Rock Dam	Below dam at Red Rock - (Marion County)	Gravel Bar below dam and churning water	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. Other observers include Dale Fye, Helen Fye, Pat Miller, and many others. \| Elimination of similar species: The other black mantled gulls (Great Black-backed, Slaty-backed, Western, and Yellow-footed) are all much larger than this gull. \| The original documentation form event lasted from approximately 10:20:00/11:10:00 and 13:30:00/14:15:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Iowa in 1998	Field notes	Birds--Identification Ornithology Rare birds	1998-11-08	1998-11-22	Manuscript, graphic, and printed material	Rare bird documentation form for a Lesser Black-backed Gull at Iowa on November 8, 1998.	Thelen, Ed	Lesser Black-backed Gull	Iowa				Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Saylorville Dam in 1998	Field notes	Birds--Identification Ornithology Rare birds	1998-11-04	N/A	Manuscript, graphic, and printed material	Rare bird documentation form for a Lesser Black-backed Gull at Saylorville Dam in Polk County, IA on November 4, 1998.	Schoenewe, Lee A.	Lesser Black-backed Gull	Saylorville Dam				Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Spring Run Wetland Area - Lair Tract, 1998	Field notes	Birds--Identification Ornithology Rare birds	1998-11-08	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Spring Run Wetland Area - Lair Tract in Dickinson County, IA on November 8, 1998.	Schoenewe, Lee A.	Lesser Black-backed Gull	Spring Run Wetland Complex, Lair Tract	Spring Run area just east of landfill, Dickinson Co.	Open field - corn stubble	The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. Other observers include Ed Thelen. \| Elimination of similar species: Herring Gull/California Gull by mantle color: Great-black-backed/Western/Slaty-backed by streaking on head + neck \| The original documentation form event lasted from 09:30:00/10:10:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Black-backed Gull species at Red Rock Reservoir, 1998	Field notes	Birds--Identification Ornithology Rare birds	1988-12-25	1988-12-26	Rare birds documentation form	Rare bird documentation form for a Black-backed Gull species at Red Rock Reservoir in Marion County, IA on December 25, 1988.	Proescholdt, Mark	Gulls	Lake Red Rock	Red Rock Reservoir - (Marion County)	Whitebreast area east of the church - large open water	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. \| Elimination of similar species: This was probably a Lesser Black-backed Gull or a Great Black-backed Gull. \| The original documentation form event lasted from 15:00:00/15:00:30 approximately.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Manhattan Point at West Okoboji Lake, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-11-21	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Manhattan Point at West Okoboji Lake in Dickinson County, IA on November 21, 1999.	Kenne, Matthew C.	Lesser Black-backed Gull	Manhattan Point	West Okoboji Lake, Dickinson Co., 21 Nov 1999		The documentation form by Matthew Kenne is the only one submitted and forms the basis of this record. Other observers include Lee Schoenewe. \| Elimination of similar species: The bird was standing on Manhattan Point with several Herring Gulls of various ages and many more Ring-billed Gulls, facing quarter-on towards Lee Schoenewe and I. It was a dark 1st year gull, similar to, but slightly smaller than, other 1st year Herring Gulls present. It had an all black bill that was smaller than the other Herrings. [...] Lee and I waited for about 10 minutes for the bird to turn to the side, showing us blackish wingtips and dark tertials, eliminating the Thayer's Gull possbility we had been considering. The wing tips extended farther beyond the body than on the Herring Gulls. [...] There was no pale 'window' in the inner primaries as in a Herring Gull. \| The original documentation form event occurred in the early afternoon for approximately 10 minutes.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Trickle Slough at Spirit Lake, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-11-06	1999-11-21	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Trickle Slough at Spirit Lake in Dickinson County, IA on November 6, 1999.	Schoenewe, Lee A.	Lesser Black-backed Gull	Trickle Slough	Trickle Slough, Spirit Lake, Dickinson County	Sandy point surrounded by open water	The documentation form by Lee A. Schoenewe is the only one submitted and forms the basis of this record. Other observers include Gary Grange. \| Elimination of similar species: Greater Black-backed - size relative to Herring Gulls; Herring/Thayers - flight pattern + long wings in flight + perched \| The original documentation form event lasted from 14:40:00/15:10:00.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Black-backed Gull species at Red Rock Reservoir, 1998	Field notes	Birds--Identification Ornithology Rare birds	1998-12-25	1998-12-26	Rare birds documentation form	Rare bird documentation form for a Black-backed Gull species at Red Rock Reservoir in Marion County, IA on December 25, 1998.	Proescholdt, Mark	Gulls	Lake Red Rock	Red Rock Reservoir - (Marion County)	Whitebreast area east of the church - large open water	The documentation form by Mark Proescholdt is the only one submitted and forms the basis of this record. \| Elimination of similar species: This was probably a Lesser Black-backed Gull or a Great Black-backed Gull. \| The original documentation form event lasted from 15:00:00/15:00:30.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Lesser Black-backed Gull at Jester Park, 1999	Field notes	Birds--Identification Ornithology Rare birds	1999-12-06	N/A	Rare birds documentation form	Rare bird documentation form for a Lesser Black-backed Gull at Jester Park in Polk County, IA on December 6, 1999.	Brees, Aaron	Lesser Black-backed Gull	Jester Park	Jester Park, Campground 4		The documentation form by Aaron Brees is the only one submitted and forms the basis of this record. \| Elimination of similar species: Herring Gull was eliminated by structure, wing pattern, and tail pattern. California Gull was eliminated by bill coloration and tail pattern. Thayers Gull was eliminated by wing pattern, structure, and over all color.	Iowa Ornithologists' Union \| MS 166	34	36
Rare bird documentation form for Glaucous Gull at Lake Manawa, 1978	Field notes	Birds--Identification Ornithology Rare birds	1978-12-06	N/A	Rare birds documentation form	Rare bird documentation form for a Glaucous Gull at Lake Manawa in Pottawattamie County, IA on December 6, 1978.	Bray, Tanya Kovanda, Sandra Padelford, Babs	Glaucous Gull	Lake Manawa State Park	Lake Manawa, Iowa	Large, fresh water lake - 3/4 frozen	The documentation form by Tanya Bray, Sandy Kovanda, and Babs Padelford is the only one submitted and forms the basis of this record. Other observers include Rushton G. Cortelyou. \| Elimination of similar species: All of us are familiar with herring gulls. The large size, white plumage, and absence of black on wing tips eliminated this species. \| The original documentation form event lasted from 10:30:00/11:00:00.	Iowa Ornithologists' Union \| MS 166	34	37
Rare bird documentation form for Glaucous Gull at Lock and Dam 14 near Davenport, 1979	Field notes	Birds--Identification Ornithology Rare birds	1979-12-16	N/A	Rare birds documentation form	Rare bird documentation form for a Glaucous Gull at Lock and Dam 14 near Davenport in Scott County, IA on December 16, 1979.	Kent, Thomas H. (Thomas Hugh), 1934-	Glaucous Gull	Lock and Dam 14	Lock 14 N. of Davenport IA	Open river below dam Mississippi River	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Thomas Shires. \| Elimination of similar species: Herring Gull immature - many present for comparison. All Herring Gull had variable black-gray on wings and tail Iceland Gull - large bill with pale base and size eliminate this species, also rare \| The original documentation form event lasted from 09:00:00/09:05:00.	Iowa Ornithologists' Union \| MS 166	34	37
Rare bird documentation form for Glaucous Gull at Lock and Dam 14, 1980	Field notes	Birds--Identification Ornithology Rare birds	1980-12-21	N/A	Rare birds documentation form	Rare bird documentation form for a Glaucous Gull at Lock and Dam 14 in Scott County, IA on December 21, 1980.	Kent, Thomas H. (Thomas Hugh), 1934-	Glaucous Gull	Lock and Dam 14	Lock + Dam 14, Scott Co, Iowa	Mississippi River, frozen except below dam and small area about dam	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include Thomas Shire and William Kent. \| Elimination of similar species: Herring gull - uniform light color Iceland gull - size, black-tipped bill \| The original documentation form event lasted from around 10:00:00/10:15:00.	Iowa Ornithologists' Union \| MS 166	34	37
Rare bird documentation form for Glaucous Gull at Lock and Dam 15 at Davenport, 1981	Field notes	Birds--Identification Ornithology Rare birds	1981-01-02	N/A	Rare birds documentation form	Rare bird documentation form for a Glaucous Gull at Lock and Dam 15 at Davenport in Scott County, IA on January 2, 1981.	Kent, Thomas H. (Thomas Hugh), 1934-	Glaucous Gull	Lock and Dam 15	Lock 15 Davenport IA	Mississippi River below dam Downtown Davenport	The documentation form by Thomas H. Kent is the only one submitted and forms the basis of this record. Other observers include William Kent. \| Elimination of similar species: Iceland, Herring Gulls. \| The original documentation form event lasted from 12:15:00/12:20:00.	Iowa Ornithologists' Union \| MS 166	34	37